Vikings is a historical drama television series written and created by Michael Hirst for the television channel History. Filmed in Ireland, it premiered on 3 March 2013 in Canada, concluding on December 30, 2020.^[1] A standalone sequel series, Vikings: Valhalla, written and created by Jeb Stuart for Netflix, premiered on February 25, 2022, concluding on July 11, 2024.^[2]

Vikings is inspired by the sagas of Viking Ragnar Lothbrok, one of the best-known legendary Norse heroes and notorious as the scourge of England and France, while Vikings: Valhalla, set 100 years later, chronicles the beginning of the end of the Viking Age and the adventures of Leif Erikson, his sister Freydís Eiríksdóttir and Harald Sigurdsson. The broad historical narrative of both series are based on real events, with some of the principal characters representing real figures from history and/or legend.

Vikings portrays Ragnar as a former farmer who rises to fame by successful raids into England, and eventually becomes king, with the support of his family and fellow warriors: his brother Rollo, his son Björn Ironside, and his wives—the shieldmaiden Lagertha and the princess Aslaug. Vikings: Valhalla portrays Leif and Freydís as immigrants from Greenland to Norway, who are respectively pulled into the Viking campaign to conquer Great Britain and the growing religious divide between Christians and Pagans. The Seer (portrayed by John Kavanagh) is the only character to appear in both series, having appeared in at least one episode of every season.

The following is a list of series regulars who have appeared in one or more of the six seasons of Vikings or the three seasons of Vikings: Valhalla. The characters are listed in the order they were first credited.

  = Main cast (credited)

  = Recurring cast (3+)

  = Guest cast (1-2)

Character	Actor	Vikings									Valhalla
		1	2	3	4		5		6		1	2	3
					Part 1	Part 2	Part 1	Part 2	Part 1	Part 2
Ragnar Lothbrok	Travis Fimmel	Main					Does not appear
Lagertha	Katheryn Winnick[a]	Main								Does not appear
Rollo	Clive Standen	Main					Special appearances		Does not appear
Siggy	Jessalyn Gilsig	Main			Does not appear
Floki	Gustaf Skarsgård	Main							Does not appear	Main	Does not appear
Earl Haraldson	Gabriel Byrne	Main	Does not appear
Athelstan	George Blagden	Main			Recurring	Guest	Body double	Does not appear
King Horik	Donal Logue	Main		Does not appear
Aslaug	Alyssa Sutherland	Main[b]					Does not appear
King Ecbert	Linus Roache	Does not appear	Main				Body double		Does not appear
Björn Ironside	Alexander Ludwig	Does not appear	Main[c]								Does not appear
	Nathan O'Toole (young)	Recurring	Guest	Does not appear	Guest		Does not appear
Kalf	Ben Robson	Does not appear		Main		Does not appear
Harbard	Kevin Durand	Does not appear		Main		Does not appear
Charles	Lothaire Bluteau	Does not appear		Main		Does not appear
The Seer	John Kavanagh	Recurring			Main						Guest
Harald Finehair	Peter Franzén	Does not appear			Main						Does not appear
Halfdan the Black	Jasper Pääkkönen	Does not appear			Main			Does not appear		Main[d]	Does not appear
Ivar the Boneless	Alex Høgh Andersen[e]	Does not appear	Recurring			Main					Does not appear
Hvitserk	Marco Ilsø[f]	Does not appear	Recurring			Main					Does not appear
Sigurd Snake-in-the-Eye	David Lindström[g]	Does not appear	Recurring			Main	Body double	Does not appear
Ubbe	Jordan Patrick Smith[h]	Does not appear	Recurring			Main					Does not appear
Aethelwulf	Moe Dunford	Does not appear	Recurring			Main		Does not appear
Bishop Heahmund	Jonathan Rhys Meyers	Does not appear				Main[i]			Does not appear
Oleg the Prophet	Danila Kozlovsky	Does not appear							Main		Does not appear
Erik	Eric Johnson	Does not appear							Main		Does not appear
Torvi	Georgia Hirst	Does not appear	Recurring						Main[j]		Does not appear
Gunnhild	Ragga Ragnars	Does not appear						Recurring	Main[k]		Does not appear
Othere	Ray Stevenson	Does not appear							Main[l]		Does not appear
Leif Erikson	Sam Corlett	Does not appear									Main
Freydís Eiríksdóttir	Frida Gustavsson	Does not appear									Main
Harald Sigurdsson	Leo Suter	Does not appear									Main
King Canute the Great	Bradley Freegard	Does not appear									Main
Jarl Olaf Haraldsson	Jóhannes Haukur Jóhannesson	Does not appear									Main		Does not appear
Jarl Estrid Haakon	Caroline Henderson	Does not appear									Main	Does not appear
Queen Emma	Laura Berlin	Does not appear									Main
Earl Godwin	David Oakes	Does not appear									Main

Cast notes

• Played by Travis Fimmel (seasons 1–4)

Originally a farmer, Viking Ragnar Lothbrok claims to be descended from the god Odin. He becomes Earl of Kattegat after he challenges and kills the ruthless Earl Haraldson. He is also a feared warrior, becomes a raider of undiscovered lands, and, eventually, King of Denmark. Despite his reputation for ruthlessness and brutality, he is a curious man eager to learn about other cultures. Based on the semi-legendary Ragnar Lodbrok.

• Played by Katheryn Winnick (seasons 1–6) and Mabel Hurley (season 5)

Lagertha is Ragnar's first wife and a shieldmaiden. Following her separation from Ragnar, Lagertha rises to become Earl of Hedeby in her own right, going by the name Earl Ingstad. Following the deaths of Ragnar and Aslaug, she becomes Queen of Kattegat. Based on the legendary Lagertha.

• Played by Clive Standen (seasons 1–5)

Ragnar's brother. A ruthless and skilled warrior, but his life in his brother's shadow makes Rollo's feelings towards Ragnar change from love and admiration to hateful jealousy. Eventually, he defects to the Franks and is made Duke of Normandy. Based on the historical Rollo.

• Played by Jessalyn Gilsig (seasons 1–3)

Earl Haraldson's wife, and later the lover of Rollo. She possesses a strategic mind and an urge to regain her power and influence, but grows to care for Ragnar and his family. She drowns while attempting to save Ragnar's children from a similar fate as her own.

• Played by Gustaf Skarsgård (seasons 1–6)

A gifted but eccentric shipbuilder and friend of Ragnar. His ships create a revolution in shipwright techniques. He considers himself descended from the trickster god Loki and is very devout in the Norse religion. Loosely based on the historical Hrafna-Flóki Vilgerðarson.^[3]

• Played by Gabriel Byrne (season 1)

Ragnar's predecessor as Earl of Kattegat and husband of Siggy. He grows to resent Ragnar's ambitions to raid the West, and sees Ragnar's growing popularity as a threat. He is killed by Ragnar during personal combat.

• Played by George Blagden (seasons 1–4)

An Anglo-Saxon monk from the monastery of Lindisfarne in Northumbria. Captured by Ragnar on his first raid, Athelstan grows to appreciate Viking culture and thus is constantly torn between the customs of Christian England and the pagan ways of Scandinavia. Athelstan becomes a confidant of King Ecbert after he is captured by his army.

• Played by Donal Logue (seasons 1–2)

A powerful king in Denmark who ends up being overthrown by Ragnar. Based on the historical Horik I.

• Played by Alyssa Sutherland (seasons 1–4)

Ragnar's second wife, claiming to be the daughter of the shieldmaiden and valkyrie Brynhildr and the dragonslayer Sigurd. When Ragnar becomes King of Kattegat, she becomes its queen. She is killed and usurped by a vengeful Lagertha. Based on the legendary Aslaug.

• Played by Linus Roache (seasons 2–4)

Ruler of the most powerful kingdom in England. He dreams of becoming Bretwalda and becomes an unlikely friend of Ragnar. Based on the historical Egbert of Wessex.

• Played by Nathan O'Toole (seasons 1–2, 4) and Alexander Ludwig (seasons 2–6)

Ragnar and Lagertha's son, given his epithet by his father after his first battle with the Saxons. Based on the historical Björn Ironside.

• Played by Ben Robson (seasons 3–4)

A prominent and ambitious Hedeby villager who later betrays Lagertha and takes her earldom.

• Played by Kevin Durand (seasons 3–4)

A charismatic wanderer and storyteller who visits Kattegat.

• Played by Lothaire Bluteau (seasons 3–4)

Ruler in Paris, he witnesses Ragnar's attack on the city and later employs Rollo as a defender against Viking raids. Charles is a composite character drawing from the historical Charles the Bald (grandson of Charlemagne who first defended Paris from the Vikings), Charles the Fat (who commanded Odo) and Charles the Simple (who encountered Rollo, and may have had a daughter Gisela).

• Played by John Kavanagh (seasons 1–6; Valhalla)

Seiðr of Kattegat. A 200-year-old blind being who often provides mysterious predictions to the characters. He is murdered by Ivar after refusing to recognise Ivar as a god and predicting Ivar's fall. In Valhalla, the Seer returns as a spirit guide, who appears to Freydís Eiríksdóttir and Jarl Gorm throughout their lives.

• Played by Peter Franzén (seasons 4–6)

The ambitious king of Vestfold, who seeks to become king of all Norway and marry Ellisif. He allies with Ragnar during his second raid on Paris. He then conquers his neighbours' lands. He joins the Great Heathen Army and battles Aella and Aethelwulf. He fails to conquer Kattegat. He discovers Ellisif is married, and murders her husband, and then kidnaps and marries Astrid. She is killed in battle and he vows vengeance on Lagertha. He sails with Bjorn to retake Kattegat, but their fleet is damaged by a storm. Harald saves Bjorn's life but takes a serious battle wound. Olaf rescues Harald, but occupies Vestfold. Harald's men beg Bjorn for help, and Bjorn repays his debt. When Olaf tries to have Bjorn elected as over-king of Norway, Harald defeats Bjorn in the election, but Harald's men fail to kill Bjorn. Olaf refuses to recognise Harald, so Harald has him put away and sends warriors to secure his borders.

Based on the historical Harald Fairhair.

• Played by Jasper Pääkkönen (seasons 4–6)

Harald's violent younger brother. He hates Christians and tries to kill as many as possible. He grows tired of living in his brother's shadow and of Harald's war with other Norsemen, and joins Bjorn's expedition to the Mediterranean. They form a close friendship which leads Halfdan to join Lagertha's side when Ivar and Harald declare war. Faced by Harald in battle, he is killed. A composite character of the historical Hastein and historical Halfdan the Black, the father of Harald Fairhair.

• Played by an uncredited infant actor (seasons 2–3), James Quinn Markey (season 4) and Alex Høgh Andersen (seasons 4–6)

Ragnar and Aslaug's fourth and most violent son. A birth defect has rendered his legs useless and left him impotent. Ivar is more unstable than his brothers, sadistic and seemingly narcissistic. While publicly boastful, he is insecure and feels unloved except by his mother Aslaug. When Lagertha kills Aslaug, Ivar vows vengeance and with the help of Harald and Rollo makes himself king of Kattegat. He is married to his former slave Freydis, who manipulates him. Based on the historical Ivar the Boneless.

• Played by Cathal O'Hallin (seasons 2–3), Stephen Rockett (season 4) and Marco Ilsø (seasons 4–6)

Ragnar and Aslaug's second son. He enjoys battle and adventure and sides with his younger brother Ivar when Ivar and Ubbe fall out. As Ivar's megalomania increases and Ivar becomes more abusive of him, Hvitserk starts to question his decision. A composite of the semi-historical or legendary Hvitserk, the historical Halfdan Ragnarsson and the historical warlord Guthrum.

• Played by an uncredited infant actor (seasons 2–3), Elijah O'Sullivan (season 4) and David Lindström (season 4)

Ragnar and Aslaug's third son. Killed by his brother Ivar after years of bullying. Based on the historical Sigurd Snake-in-the-Eye.

• Played by Cormac Melia (seasons 2–3), Luke Shanahan (season 4) and Jordan Patrick Smith (seasons 4–6)

Ragnar and Aslaug's first son. He is the most responsible of Aslaug's sons, and does not initially take part in raiding, preferring to stay and protect Kattegat. When his mother is killed, he wants revenge. However, as his previously warm relationship with Ivar turns hostile, he sides with Lagertha. When Lagertha is driven into exile in England, Ubbe becomes Alfred's advisor and converts to Christianity. Based on the historical Ubba.

• Played by Moe Dunford (seasons 2–5)

Son of King Ecbert. He is married to Princess Judith, with whom he has a son, Prince Aethelred. He dies by asphyxiation after being stung by a bee. Based on the historical Aethelwulf.

• Played by Jonathan Rhys Meyers (seasons 4–5)

A very religious warrior priest.^[4] Heahmund leads an army in resistance against the Norse presence in York, becoming a principal ally to Aethelwulf. He is eventually captured by Ivar who admires his skill as a warrior. Heahmund fights for Ivar against Lagertha, but is captured in the initial battle. Having become smitten by Lagertha, he seduces her and switches to her side. On his suggestion, Lagertha and her followers seek refuge in England. Through Heahmund's influence, the Northmen are given sanctuary in return for fighting against other Viking raiders. When Harald Finehair attempts to raid Wessex, Heahmund fights in the frontline. In the battle he is wounded by arrows and killed by Gunnhild. Broadly inspired by the historical Heahmund.

• Played by Danila Kozlovsky (season 6)

The Varangian (east European Viking) ruler of Kiev, called "the Prophet". He is the protector of the heir to the Rus kingdom, Igor and brother in law of Igor's father Rurik. Oleg is sadistic and uses his status as Igor's protector as a pretext for consolidating control over the kingdom. He has successfully sacked Constantinople, but is critical of Rurik's eastward expansion. Oleg wants to conquer Scandinavia which he claims is the property of the Rus. Oleg takes in Ivar, thinking him useful for his plan to invade Scandinavia. Oleg forms an uneasy friendship with Ivar after revealing that he murdered his wife after discovering her infidelity. Ivar's similar experience with Freydis brings them closer. The character is based on the semi-historical Oleg the Prophet.

• Played by Eric Johnson (season 6)

An outlaw who helps Bjorn and later Harald. He later becomes the King of Kattegat in Harald's absence alongside Queen Ingrid but she has him killed.

• Played by Georgia Hirst (seasons 2–6)

Wife of Jarl Borg, then the wife of Erlendur, later the wife of Bjorn and eventually, the wife of Ubbe. Initially a timid girl, she rises to become a shieldmaiden under Lagertha.

• Played by Ragga Ragnars (seasons 5–6)

Jarl Olavsonn's wife. Harald becomes enamored with her, but after Olavsonn's death, she marries Bjorn instead. As his wife, she becomes queen of Kattegat. She is based on the quasi-historical Gunnhild.

• Played by Ray Stevenson (season 6)

A wanderer living in Iceland. His real name is Athelstan and he was a monk in England. During his travels as a missionary, he took the identity of the dying wanderer Othere and moved to Iceland. He then sailed west and glimpsed the Golden Land. Ubbe asks him to sail again with him to find the new land.

• Played by Sam Corlett^[5]

Originally an explorer from Greenland, Leif was the son of Erik the Red, the founder of the first Norse settlement in Greenland, and Thjodhild of Iceland. Based on the legendary Leif Erikson.^[6]

• Played by Frida Gustavsson^[7]

Freydís is the daughter of Erik the Red,^[8] and the sister of Leif Erikson. She is portrayed as a masculine, strong-willed woman who would defy the odds of her society.

• Played by Leo Suter^[9]

Great-grandson of Harald Fairhair^[10] and the younger brother of Olaf Haraldson, Harald was ambitious and sought to become king of all Norway someday. He allies with Canute during his raid on England. Based on the historical Harald Hardrada.

• Played by Bradley Freegard

King Canute is the powerful King of Denmark and Norway. Based on the historical Cnut.

• Played by Jóhannes Haukur Jóhannesson^[11]

Older brother of Harald, son of Harald Grenske and great grandson of Harald Fairhair. Olaf dreams of becoming King of Norway, usurping Danish rule, and rooting out paganism. Based on the historical Olaf II of Norway.

• Played by Caroline Henderson (season 1)

Haakon was the Jarl of Kattegat, as a vassal under King Canute. Her husband was killed by Christians. Her grandmother was an African noblewoman Haakon's grandfather had met in Alexandria. She was killed during the attack by Jarl Kåre. Based on the historical Haakon Ericsson.

• Played by Laura Berlin

A descendant of Rollo, who became the English queen through her marriages to the Anglo-Saxon king Æthelred the Unready and later King Canute. Based on the historical Emma of Normandy.

• Played by David Oakes

Godwin, the son of a disgraced ealdorman, became one of the most trusted advisors of King Æthelred the Unready of England by delivering him something none of his peers could: the truth. Following Aethelred's death, he serves as an advisor to young King Edmund until the Vikings overrun London following which he becomes an advisor to King Canute. Based on historical Godwin, Earl of Wessex.

The following is a list of recurring characters, listed in the order that they first appeared on the show.

  = Main cast (credited)

  = Recurring cast (3+)

  = Guest cast (1-2)

Character	Actor	Vikings									Valhalla
		1	2	3	4		5		6		1	2	3
					Part 1	Part 2	Part 1	Part 2	Part 1	Part 2
Svein	David Pearse	Recurring	Does not appear
Gyda	Ruby O'Leary	Recurring	Does not appear		Guest		Does not appear
Erik	Vladimir Kulich	Recurring	Does not appear
Leif	Diarmaid Murtagh	Recurring	Does not appear
Arne	Tadhg Murphy	Recurring	Guest	Does not appear
Torstein	Jefferson Hall	Recurring			Does not appear
King Aelle	Ivan Kaye	Recurring	Guest		Recurring		Does not appear
Thyri	Elinor Crawley	Recurring	Does not appear	Guest	Does not appear
Helga	Maude Hirst	Recurring					Does not appear
Elisef	Carrie Crowley	Guest	Recurring	Does not appear
Rafarta	Donna Dent	Guest	Does not appear				Recurring		Does not appear
Queen Ealhswith	Cathy White	Guest		Does not appear		Guest	Does not appear
Jarl Borg	Thorbjørn Harr	Guest	Recurring	Does not appear
Erlendur	Edvin Endre	Does not appear	Recurring			Does not appear
Earl Sigvard	Morten Suurballe	Does not appear	Recurring	Does not appear
Bishop Edmund	Philip O'Sullivan	Does not appear	Recurring			Guest	Does not appear
Thorunn	Gaia Weiss	Does not appear	Recurring		Does not appear
Judith	Jennie Jacques[a]	Does not appear	Recurring						Does not appear
Einar	Steve Wall	Does not appear	Guest	Recurring	Guest	Does not appear
Kwenthrith	Amy Bailey	Does not appear	Guest	Recurring		Does not appear
Angrboda	Rosalie Connerty[b]	Does not appear	Guest	Recurring	Guest	Does not appear
Burgred	Aaron Monaghan	Does not appear		Recurring	Does not appear
Earl Siegfried	Greg Orvis	Does not appear		Recurring	Does not appear
Sinric	Frankie McCafferty	Does not appear		Recurring	Guest	Does not appear	Recurring	Does not appear
Alfred	Ferdia Walsh-Peelo[c]	Does not appear		Recurring					Does not appear	Recurring	Does not appear
Odo	Owen Roe	Does not appear		Recurring		Does not appear
Gisla	Morgane Polanski	Does not appear		Recurring		Guest	Does not appear
Roland	Huw Parmenter	Does not appear		Recurring		Does not appear
Therese	Karen Hassan	Does not appear		Recurring		Does not appear
Aethelred	Darren Cahill[d]	Does not appear		Guest	Recurring				Does not appear
Guthrum	Ben Roe[e]	Does not appear		Guest		Recurring		Does not appear
Magnus	Dean Ridge[f]	Does not appear		Guest	Recurring	Guest	Does not appear	Recurring	Does not appear
Yidu	Dianne Doan	Does not appear			Recurring	Does not appear
Prudentius	Seán Ó Meallaigh	Does not appear			Recurring	Does not appear
Waerferth	Des Carney	Does not appear			Recurring	Does not appear
Astrid	Josefin Asplund	Does not appear				Recurring		Does not appear
Margrethe	Ida Marie Nielsen	Does not appear				Recurring		Guest	Does not appear
Hali	Ryan Henson[g]	Does not appear				Recurring				Does not appear
Asa	Elodie Curry[h]	Does not appear				Recurring	Guest	Recurring		Guest	Does not appear
Tanaruz	Sinead Gormally	Does not appear				Recurring	Does not appear
Lord Cyneheard	Malcolm Douglas	Does not appear				Guest		Recurring	Does not appear
Lord Cuthred	Jonathan Delaney Tynan	Does not appear					Recurring	Guest	Does not appear
White Hair	Kieran O'Reilly	Does not appear					Recurring	Guest	Recurring	Does not appear
Kassia	Karima McAdams	Does not appear					Recurring	Does not appear
Kjetill Flatnose	Adam Copeland	Does not appear					Recurring				Does not appear
Eyvind	Kris Holden-Ried	Does not appear					Recurring		Does not appear
Aud	Leah McNamara	Does not appear					Recurring		Does not appear
Helgi the Lean	Jack McEvoy	Does not appear					Recurring		Does not appear
Thorunn	Mei Bignall	Does not appear					Recurring		Does not appear
Ingvild	Kelly Campbell	Does not appear					Recurring		Guest	Recurring	Does not appear
Bul	James Craze	Does not appear					Recurring	Does not appear
Asbjorn	Elijah Rowen	Does not appear					Recurring		Does not appear
Thorgrim	Rob Malone	Does not appear					Recurring	Does not appear
Frodi	Scott Graham	Does not appear					Recurring		Guest	Recurring	Does not appear
Jorunn	Tallulah Belle Earley	Does not appear					Recurring		Does not appear
Svase	Anthony Brophy	Does not appear					Recurring	Does not appear
Snaefrid	Dagny Backer Johnsen	Does not appear					Recurring	Does not appear
Queen Freydis	Alicia Agneson	Does not appear					Guest	Recurring	Does not appear
Princess Katia		Does not appear							Recurring		Does not appear
Elsewith	Róisín Murphy	Does not appear						Recurring	Does not appear	Recurring	Does not appear
Thora	Eve Connolly	Does not appear						Recurring		Does not appear
Lady Ethelfled	Ann Skelly	Does not appear						Recurring	Does not appear
King Olaf the Stout	Steven Berkoff	Does not appear						Recurring		Guest	Does not appear
Amma	Kristy Dawn Dinsmore	Does not appear						Guest	Recurring	Guest	Does not appear
Ingrid	Lucy Martin	Does not appear							Recurring		Does not appear
Ganbaatar	Andrei Claude	Does not appear							Recurring	Guest	Does not appear
Prince Dir	Lenn Kudrjawizki	Does not appear							Recurring		Does not appear
Prince Igor	Oran Glynn O'Donovan	Does not appear							Recurring		Does not appear
Anna	Serena Kennedy	Does not appear							Recurring	Does not appear
	Isabelle Connolly	Does not appear								Guest	Does not appear
King Hakon	Mishaël Lopes Cardozo	Does not appear							Recurring	Guest	Does not appear
Gudrid	Noella Brennan	Does not appear								Recurring	Does not appear
Naad	Ian Lloyd Anderson	Does not appear								Recurring	Does not appear
Peminuit	Wesley French	Does not appear								Recurring	Does not appear
We'jitu	Phillip Lewitski	Does not appear								Recurring	Does not appear
Liv	Lujza Richter	Does not appear									Recurring	Guest	Does not appear
Yrsa	Álfrún Laufeyjardóttir	Does not appear									Recurring	Does not appear
Skarde	Edward Franklin	Does not appear									Recurring	Does not appear
Njal	Gavan O'Connor-Duffy	Does not appear									Recurring	Does not appear
Agnarr	Christopher Rygh	Does not appear									Recurring
Jarl Norí	Kenneth M. Christensen	Does not appear									Recurring	Does not appear	Guest
Arne Gormsson	Pääru Oja	Does not appear									Recurring	Does not appear
Hallbjorn	James Ballanger	Does not appear									Recurring		Does not appear
Prince / King Edmund II	Louis Davison	Does not appear									Recurring	Does not appear
Eadric Streona	Gavin Drea	Does not appear									Recurring	Does not appear
Cyneheard, Earl of Kent	Alan Devine	Does not appear									Recurring	Does not appear	Guest
Wulfhere, Earl of Sussex	Mark Huberman	Does not appear									Recurring	Guest
Oswick, Earl of East Anglia	Gavin O'Connor	Does not appear									Recurring	Does not appear	Guest
Leofric, Earl of Northumbria	Martin Philips	Does not appear									Recurring	Does not appear
Jarl Kåre	Asbjørn Krogh Nissen	Does not appear									Recurring	Does not appear
Queen Ælfgifu	Pollyanna McIntosh	Does not appear									Recurring
King Sweyn Forkbeard	Søren Pilmark	Does not appear									Guest
Princess Gytha	Henessi Schmidt	Does not appear									Guest	Recurring
Prince / King Svein Knutsson	Charlie O'Connor	Does not appear									Guest	Recurring	Does not appear
	Jakob Femerling Andersen	Does not appear											Recurring
Jorundr Torvilsson	Stanislav Callas	Does not appear										Recurring	Does not appear
Ælfwynn	Maria Guiver	Does not appear										Recurring	Does not appear
Hrefna	Emily Mcentire	Does not appear										Recurring	Does not appear
	Amalia Holm	Does not appear											Recurring
Valgerda	Aoibhinn McGinnity	Does not appear										Recurring
Lord Hárekr	Bradley James	Does not appear										Recurring	Does not appear
Lady Gudrid	Yngvild Støen Grotmol	Does not appear										Recurring	Does not appear
Kolr	Patrick Loftus	Does not appear										Recurring	Guest
Grand Prince Yaroslav the Wise	Marcin Dorociński	Does not appear										Recurring	Guest
Mariam	Hayat Kamille	Does not appear										Recurring	Does not appear
Batu	Taylor James	Does not appear										Recurring
Kaysan	Kayode Akinyemi	Does not appear										Recurring
Lord Vitomir	Steven Brand	Does not appear										Recurring	Does not appear
Eleana / Empress Zoe	Sofya Lebedeva	Does not appear										Recurring
Kurya	Tolga Safer	Does not appear										Recurring	Does not appear
Gestr	Eigil Hedegaard	Does not appear										Recurring	Does not appear
Brigtoc	Ailbe Cowley	Does not appear										Recurring	Does not appear
Cadlín	Siobhán Callaghan	Does not appear										Recurring	Does not appear
Dorn	Elaenor McLynn	Does not appear										Recurring
Prince Harold Harefoot	Ruben Lawless	Does not appear									Guest		Does not appear
	Pyry Kähkönen	Does not appear											Recurring
Magnus Olafsson	Stefán Haukur Jóhannesson	Does not appear										Guest	Does not appear
	Set Sjöstrand	Does not appear											Recurring
Emperor Romanos III	Nikolai Kinski	Does not appear										Guest	Recurring
General Georgios Maniakes	Florian Munteanu	Does not appear											Recurring
Stígr	Leander Vyvey	Does not appear											Recurring
Harald Haraldsson	Luke Harmon	Does not appear											Recurring
Bishop Grimketel	Horatio James	Does not appear											Recurring
Dunstan	Peter Claffey	Does not appear											Recurring
Queen Katla	Kate Bratchyna	Does not appear											Recurring
Prince Edward	Cal O'Driscoll	Does not appear											Recurring
Prince Alfred	Henry Proctor	Does not appear											Recurring
Prince Harthacanute	Huey O'Meara	Does not appear											Recurring
Erik the Red	Goran Višnjić	Does not appear											Recurring
Hilde	Carrie Crowley	Does not appear											Recurring

Cast notes

• Played by David Pearse (season 1)

A loyal henchman of Earl Haraldson. He is killed by Rollo, after Earl Haraldson's death.

• Played by Ruby O'Leary (seasons 1 and 4)

Daughter of Ragnar and Lagertha. She dies in a plague. Loosely based on Ragnar's unnamed daughters.

• Played by Vladimir Kulich (season 1)

Elderly Viking and one of Ragnar's warriors. He has a wife, Elisef, and a son, Leif. He is an early supporter of Ragnar and is murdered by earl Haraldson.

• Played by Diarmaid Murtagh (season 1)

One of Ragnar's warriors and son of Erik and Elisef. He offers himself as a sacrifice at Uppsala.

• Played by Tadhg Murphy (seasons 1–2)

One of Ragnar's warriors; an archer with an eye patch. He is killed in battle by Rollo.

• Played by Jefferson Hall (seasons 1–3)

One of Ragnar's warriors and closest friends. He makes a suicidal attack on the Mercians after having contracted gangrene and amputation of his arm prevents fail to stop the spread.

• Played by Carrie Crowley (seasons 1–2)

Wife of Erik and the mother of Leif.

• Played by Ivan Kaye (seasons 1–4)

Ruler of one of England's ancient kingdoms and the first to be attacked by Ragnar. Father of Princess Judith, Aethelwulf's wife, and grandfather of Princes Aethelred and Alfred. Based on the historical King Ælla of Northumbria. He killed Ragnar by throwing him into a pit of snakes and was executed by Bjorn as retribution for Ragnar's death.

• Played by Elinor Crawley (seasons 1 and 3)

Daughter of Earl Haraldson and Siggy. She, along with Gyda, dies in a plague.

• Played by Maude Hirst (seasons 1–4)

Floki's long-suffering lover and wife. Murdered by her own adopted daughter who shortly after committed suicide.

• Played by Donna Dent (seasons 1, 5)

A woman of Kattegat and Eyvind's wife. She joins Floki's expedition to set up a colony. Her brother was killed by Kjetill's father Erik Tryggvason prior to the events of the series. She is killed by Kjetill.

• Played by Cathy Whyte (seasons 1–2, 4)

Wife of King Aelle and the mother of Princess Judith.

• Played by Thorbjørn Harr (seasons 1–2)

A powerful warlord of an earldom in Götaland. He has a wife, Torvi, and a son, Guthrum. He was killed by Ragnar with the Blood Eagle, for having attacked his people and his family.^[12][13]

• Played by Edvin Endre (seasons 2–4)

King Horik's first son. He is cruel and spiteful. After the death of his father, he seeks vengeance against Ragnar and his family. He ends up marrying Torvi and conspires with Kalf to ruin Ragnar. He is killed by Torvi herself after frequently threatening Torvi's son Guthrum. Loosely based on the historical Horik II.

• Played by Morten Suurballe (season 2)

Lagertha's second husband and Earl of Hedeby. He is killed by Lagertha after multiple incidents of abuse.^[14]

• Played by Philip O'Sullivan (seasons 2–4)

An influential advisor at the court of King Ecbert. He is murdered by Hvitserk when the Great Heathen Army sacks Ecbert's villa. A composite character of the historical Eadmund of Winchester and the historical Edmund of East Anglia.

• Played by Gaia Weiss (seasons 2–3)

Bjorn's love interest and later first wife. Shortly after the birth of their daughter Siggy she leaves Bjorn.^[15]

• Played by Steve Wall (seasons 2–4)

A scheming troublemaker, and ally of Earl Sigvard of Hedeby. He later betrays Sigvard and helps Lagertha gain power in Hedeby. When Lagertha rejects his advances, he helps Kalf gain power in Hedeby. In the end, he is injured by Kalf and killed by Lagertha.

• Played by Sarah Greene (season 2) and Jennie Jacques (seasons 3–5)

Daughter of King Aelle and Queen Ealhswith of Northumbria and the wife of Aethelwulf. She has a legitimate son with Aethelwulf, Aethelred, and an illegitimate one with Athelstan, Alfred. Based on the historical Judith of Flanders.

• Played by Amy Bailey (seasons 2–4)

Contender to the throne of Mercia and later its Queen. She has a brother, Prince Burgred, and a putative illegitimate son with Ragnar, Magnus. She is stabbed by Judith after threatening to kill Ecbert. Based on the historical Cwenthryth.

• Played by an uncredited infant actress (seasons 2–3) and Rosalie Connerty (season 4)

Floki and Helga's daughter. She dies in childhood.

• Played by Aaron Monaghan (season 3)

The rebellious brother of Kwenthrith. Based on the historical Burgred of Mercia. He is poisoned by Kwenthrith who becomes Queen of Mercia.

• Played by an uncredited infant actor (seasons 3–4) and Darren Cahill (season 5)^[16]

Prince Aethelwulf and Princess Judith's son. Based on the historical Æthelred of Wessex.

• Played by Greg Orvis (season 3)

A friend of Earl Kalf's and an ally to King Ragnar. He is killed at the Siege of Paris. Loosely based on the Norse chief Sigfred who took part in the Siege of Paris (885–86).

• Played by Frankie McCafferty (seasons 3–5)

Sinric (Sindric from season 5 onwards) is a wanderer who taught Ragnar about England and Frankia, and who serves as a translator for the Northmen. Loosely based on the Norse chief Sinric who took part in the Siege of Paris (885–86).

• Played by an uncredited infant actor (season 3), Conor O'Hanlon (season 4), Isaac O'Sullivan (season 4) and Ferdia Walsh-Peelo (seasons 5–6)

The son of Judith and Athelstan, and later the King of the Anglo-Saxons. Broadly based on the historical Alfred the Great.

• Played by Owen Roe (seasons 3–4)

In charge of defending the city from the Vikings. Based on the historical Odo of France. He is flogged to death by Roland on Emperor Charles's orders.

• Played by Morgane Polanski (seasons 3–4)

Daughter of Emperor Charles and later wedded to Duke Rollo. Based on the historical Gisela of France.

• Played by Huw Parmenter (seasons 3–4)

Count Odo's first-in-command. He has an incestuous relationship with his sister, Therese. He is assassinated with his sister by Emperor Charles's men.

• Played by Karen Hassan (seasons 3–4)

A noblewoman, Roland's sister, and Count Odo's mistress. She is assassinated with her brother by Emperor Charles's men.

• Played by an uncredited infant actor (seasons 3–4), Anton Giltrap (season 4) and Ben Roe (season 5)

Jarl Borg and Torvi's son. He is killed in battle by Hvitserk. Loosely based on the historical Danish warlord Guthrum

• Played by an uncredited infant actor (seasons 3–4), Cameron Hogan (season 4) and Dean Ridge (season 5)

Ragnar and Kwenthrith's supposed illegitimate son. After spending his life as a hostage, he is evicted by Aethelwulf when Ragnar denies being his father. Magnus starts to consider himself a Viking, converts to the Norse religion, and joins Harald. He joins Bjorn and Hvitserk's siege of Kattegat but suffers a crisis of faith. Coming to terms with his new identity, he tries to scale the walls as the battle turns against Bjorn. Magnus is shot to death by White Hair, when he fails to protect himself with his shield. Loosely based of Bagsecg, who also invaded England in 870/71

• Played by Dianne Doan (season 4)

Chinese slave brought after the siege of Paris who is bought by Queen Aslaug. She becomes protective of the sons of Ragnar and also forms a close bond with Ragnar, providing him with a drug and becoming his lover. Later she becomes distressed with the Viking way of life and tries to leave Ragnar. When she refuses to provide him with more of the drug and blackmails him, Ragnar drowns her.

• Played by Seán Ó Meallaigh (seasons 4)

Serves at the court of King Ecbert.

• Played by Des Carney (season 4)

One of King Ecbert's scouts. He is stabbed to death by Kwenthrith.

• Played by Josefin Asplund (seasons 4–5)

Shieldmaiden and lover of Lagertha. She and Bjorn have a secret affair. She is kidnapped by Harald and marries him but grows to become fond of him. When attempting to warn Lagertha of an attack, she is raped by the whaler she tries to bribe. She falls pregnant and unsure if the baby is Harald's or her rapist's, induces Lagertha to kill her during battle, admitting that she was always her true love. After her death, Harald carries her earring around as remembrance and swears vengeance on Lagertha.

• Played by Ida Marie Nielsen (seasons 4–5)

One of Aslaug's slaves in Kattegat and the shared lover of Ubbe, Hvitserk and Sigurd. She is disturbed by Ivar and fears him. She is freed and marries Ubbe. Hvitserk remains her lover with Ubbe's consent. Ubbe eventually rejects her to marry Torvi, causing Margrethe to go insane. Hvitserk takes care of her, but when Ivar has a dream where Margrethe stabs him, he murders her using assassins.

• Played by an uncredited infant actor (season 4) and Ryan Henson (seasons 5–6)

Bjorn and Torvi's son. He is killed by White Hair.

• Played by an uncredited infant actor (season 4), Svea Killoran (season 5) and Elodie Curry (season 6)

Bjorn and Torvi's daughter. Falls overboard of a ship after seeing Jörmungandr and dies.

• Played by Sinead Gormally (season 4)

A Moorish orphan girl adopted by Helga. When Helga brings her to the sack of Ecbert's villa, Tanaruz snaps and stabs Helga and then kills herself.

• Played by Jonathan Delaney Tynan (season 5)

A nobleman and member of the clergy of Wessex. After Bishop Heahmund is taken by the Vikings, Cuthred is appointed Bishop of Sherborne in place of Heahmund who is presumed dead. Heahmund later kills him for conspiring against him and Alfred.

• Played by Kieran O'Reilly (seasons 5–6)

The leader of Ivar's bodyguards. After Ivar's defeat, he is outcast from Kattegat by King Bjorn. He turns to banditry and raids the village where Lagertha has retired, killing Bjorn's son Halli in such a raid. Lagertha leads the resistance and eventually kills White Hair in single combat.

• Played by Alicia Agneson (season 5)

Ivar's former slave and love interest. She becomes Queen of Kattegat by marrying Ivar. As Ivar is believed to be impotent, she has sex with a slave whom she later murders in order to produce a child. Freydis claims she conceived through magically consuming Ivar's blood. This and Freydis's sycophancy lead Ivar to declare himself a god. When the child is eventually born, it is deformed. This breaks Ivar's ego and he suspects Freydis has fooled him. Ivar leaves the child out to die, turning Freydis against him. She shows Hvitserk, Bjorn and Harald a secret way through the walls, allowing them to storm Kattegat. As the city falls, she admits what she has done and Ivar strangles her to death.

• Played by Karima McAdams (season 5)

A Byzantine abbess. Loosely inspired by the historical Kassiani.

• Played by Adam Copeland (seasons 5–6)

A violent and bold patriarch of a large family, the son of Eric Tryggvasson. He is chosen by Floki for an expedition to set up a colony. A composite charakter of the legendary Ketill Flatnose and the historical Erik the Red

• Played by Kris Holden-Ried (season 5)

A Viking of Kattegat who joins Floki's expedition. He becomes disillusioned in Iceland, and becomes antagonistic to Floki. His wife Rafarta's brother was killed by Kjetill's father, which makes him antagonistic to Kjetill. After his son Bul is accidentally killed by Thorgrim, Thorgrim is found drowned; Floki believes Eyvind is responsible. Eyvind's daughter in law Thorunn vanishes. Rafarta claims Thorunn was suicidal, which is disproved when Floki produces her body. Rafarta and Asbjorn are implicated as the murderers and Floki banishes Eyvind and his family. The family is ravaged by disease and weather and sends Helgi for help. Helgi brings back Floki, Kjetill and Frodi, along with several of Kjetill's farmhands. The farmhands capture Floki at knifepoint as Kjetill and Frodi murder Eyvind and all of his family.

• Played by Leah McNamara (season 5)

Kjetill Flatnose and Ingvild's daughter, who joins Floki's expedition to set up a colony. Something of a surrogate daughter to Floki, she tries to mend peace between the feuding clans of Kjetill and Eyvind. She kills herself in Iceland after finding out Kjetill and her brother Frodi murdered Eyvind and his family.

• Played by Jack McEvoy (season 5)

Eyvind and Rafarta's son, who joins Floki's expedition to set up a colony. He is killed by Kjetill.

• Played by Mei Bignall (season 5)

Kjetill Flatnose and Ingvild's daughter and Helgi's wife, who joins Floki's expedition to set up a colony. She is killed by Asbjorn.

• Played by Kelly Campbell (seasons 5–6)

Kjetill Flatnose's wife, who joins Floki's expedition to set up a colony.

• Played by James Craze (season 5)

Eyvind and Rafarta's son, who joins Floki's expedition to set up a colony. He is killed by Thorgrim.

• Played by Elijah Rowen (season 5)

Eyvind and Rafarta's son, who joins Floki's expedition to set up a colony. He is killed by Kjetill.

• Played by Rob Malone (season 5)

Kjetill Flatnose and Ingvild's son, who joins Floki's expedition to set up a colony. He mysteriously drowns in Iceland.

• Played by Scott Graham (seasons 5–6)

Kjetill Flatnose and Ingvild's son, who joins Floki's expedition to set up a colony. He assists Kjetill in massacring Eyvind and his family.

• Played by Tallulah Belle Earley (season 5)

Eyvind and Rafarta's daughter, who joins Floki's expedition to set up a colony. She is killed by Frodi.

• Played by Anthony Brophy (season 5)

A Sami chief and an ally to Lagertha. He is killed in battle. Loosely based on the legendary Sami king Svasi.

• Played by Dagny Backer Johnsen (season 5)

King Svase's daughter. She becomes Bjorn's third wife and is killed in battle. Loosely based on the legendary Snæfrithr Svásadottir, a wife of Harald Fairhair.

• Played by Malcolm Douglas (season 5)

An ealdorman of Wessex. He conspires with Prince Aethelred to overthrow King Alfred.

• Played by Róisín Murphy (season 5)

Mannel's daughter, Queen Judith's niece and King Alfred's wife. She has an affair with Bjorn.

• Played by Eve Connolly (seasons 5–6)

Hvitserk's love interest. Ivar has her burned after she implicates herself as a critic of Ivar's regime and denies his status as a god. Hvitserk, after consuming psychedelic mushrooms, believes he is haunted by her ghost who implores him to kill Ivar.

• Played by Ann Skelly (season 5)

Lord Cuthred's daughter and Prince Aethelred's wife.

• Played by Steven Berkoff (seasons 5–6)

A Norwegian king with whom Ivar seeks an alliance. Hvitserk is sent to broker the deal, but Hvitserk instead asks Olaf to help overthrow Ivar. The amused Olaf has Hvitserk imprisoned and tortured. When Hvitserk refuses to relent, the impressed Olaf agrees to attack Kattegat. After the battle, he declares Bjorn king of Kattegat. Harald is seriously injured, and Olaf saves his life, but also occupies his kingdom and keeps Harald a prisoner. Loosely based of the historical Amlaib Conung

• Played by Kristy Dawn Dinsmore (seasons 5–6)

A shieldmaiden in Harald's army. After the re-conquest of Kattegat by Bjorn she is made Hvitserk's caretaker. She is killed by Ganbaatar in the final battle between the Norwegian collation and the Rus'.

• Played by Lucy Martin (season 6)

A slave serving Gunnhild and Bjorn in Kattegat. She becomes the fifth wife of Bjorn. After Harald rapes her and Bjorn is slain in battle, she marries Harald unsure if the child she is carrying is Bjorn's or Harald's. She is later revealed to be a witch, and after Harald's death, Ingrid becomes the sole ruler of Kattegat, ending Ragnar Lothbrok's legacy.

• Played by Andrei Claude (season 6)

Oleg's captain. He is decapitated by Gunnhild after his horse is shot dead by Ingrid.

• Played by Lenn Kudrjawizki (season 6)

Oleg's brother. Oleg tortures him but he escapes after getting help from Ivar.

• Played by Oran Glynn O'Donovan (season 6)

The son of Rurik and heir to Kievan Rus'. He is the ward of Oleg, who rules the kingdom in his name as regent. Igor fears Oleg, and is keen to escape to Oleg's brothers Dir and Askold. However, he is aware that he can use Oleg as a puppet, just as Oleg uses him. Igor and Ivar form a bond. Based on the historical Igor of Kiev.

• Played by Alicia Agneson (season 6)

Oleg's second wife, who has a striking resemblance to Freydis. She has an affair with Ivar and it is revealed that she is a spy who was sent by Dir to overthrow Oleg. She later helps Hvitserk, Ivar and Igor escape from Oleg and is present when Oleg dies.

• Played by Serena Kennedy (season 6) and Isabelle Connolly (season 6)

Dir's wife who helps to rescue him.

• Played by Mishaël Lopes Cardozo (season 6)

One of the kings of Norway and a rival to Bjorn.

• Played by Noella Brennan (season 6)

A settler who travels west with Ubbe's crew. She loses her son at sea. Loosely based of the historical Gudrid Thorbjarnardóttir

• Played by Ian Lloyd Anderson (season 6)

A settler who travels west with Ubbe's crew.

• Played by Wesley French (season 6)

A Miꞌkmaq warrior of the New Land. He is the eldest son of Pekitaulet, the Sagamaw of her tribe.

• Played by Phillip Lewitski (season 6)

A Miꞌkmaq warrior and Peminuit's younger brother. He is killed by Naad.

• Played by Christopher Rygh

One of Canute's huscarls. He becomes Emma's principal ally and enforcer in season 2 when Canute is away to fight the Vends.

• Played by Asbjørn Krogh Nissen

A Norwegian jarl who wants to eradicate paganism in Norway. He hates pagans after his parents offered up his older brother as a human sacrifice in Uppsala when he was a child. He is the principal antagonist of season 1 of Vikings: Valhalla.

• Played by Pollyanna McIntosh

Queen Ælfgifu is the first wife of Canute and is the Queen of Denmark. She is from Mercia. Ælfgifu is calculating, ambitious and charming and tries to gain as much power and respect as her husband. Based on the historical Queen Ælfgifu.

• Played by Søren Pilmark

King Sweyn Forkbeard is the retired king of Denmark who steps in as acting ruler in England when Canute goes to fight of a Vendish invasion in Denmark. He becomes an unlikely ally to Emma. Based on the historical Sweyn Forkbeard.

• Played by Bradley James

The ruler of Jomsborg, presented in the show as a pagan police state in Pomerania.

• Played by Steven Brand

The lord of Chude and father of Eleana. He makes a deal to fund Harald's trade expedition to Constantinople so he and his daughter can have his protection on their own diplomatic journey to the city. He drowns in the Dnieper when the frozen river breaks during thaw.

• Played by Sofya Lebedeva

The daughter of the Chude lord Vitomir. She becomes romantically involved with Harald during their perilous journey through Rus.

The following is a list of named characters who have had a relatively relevant story arc on the series. They are listed in the order that they first appeared on the show.

• Eddie Drew (seasons 1 and 3) and André Eriksen (season 4) as Odin, appearing to Ragnar and his sons
• Gary Murphy as Bishop Unwan, serving at the court of King Aelle (seasons 1, 4)
• Carl Shaaban as Jesus, appearing to Athelstan and Ragnar (seasons 2–3)
• Søren Pilmark as Stender, a farmer who escaped Wessex after Aethelwulf's raid (seasons 3–4)
• Siggy (played by an uncredited infant actress), Þórunn and Bjorn's daughter who dies in childhood (seasons 3–4)
• Conn Rogers as Canute, a member of King Olaf's court (seasons 5–6)
• Martin Maloney as Vigrid, one of Ivar's men (seasons 5–6)

• Eddie Elks as Olafur, a Viking warrior in the service of Earl Haraldson
• Jouko Ahola as Kauko, a Finnish Viking and one of Ragnar's warriors
• Eric Higgins as Knut Tjodolf, Earl Haraldson's half-brother
• Will Irvine as Brother Cenwulf, serving at the monastery of Lindisfarne
• Sam Lucas Smith as Edwin, a Saxon
• Jonathon Kemp as Lord Wigea, an advisor of King Aelle
• Peter Gaynor as Lord Edgar, an advisor of King Aelle
• Trevor Cooper as Earl Bjarni, Thyri's husband who is far older than her and is later killed by Siggy
• Angus MacInnes as Tostig, an old Viking warrior

• Morgan C. Jones as The Law Giver, the lawspeaker of Kattegat
• Duncan Lacroix as Ealdorman Werferth of Wessex, serving King Ecbert
• Richard Ashton as Thorvard, a Viking warrior loyal to King Horik

• Mark Huberman as Louis, a soldier in Paris

• Niall Cusack as Abbot Lupus, Rollo's teacher in Paris
• Charles Last as William, first son of Rollo and Gisla
• Charlie Kelly as Egil, an agent of King Harald
• Caitlin Scott as Princess Blaeja, Judith's sister
• Jack Nolan as Earl Jorgensen, a Swedish warlord, sacrificed to the gods by Lagertha to secure the victory against the Saxons.
• Sophie Vavasseur as Princess Ellisif, the former betrothed of King Harald
• Gary Buckley as Earl Vik, Princess Ellisif's husband
• Uncredited child actor as Marcellus, second son of Rollo and Gisla
• Uncredited child actress as Celsa, daughter of Rollo and Gisla

• Keith McErlean as Lord Denewulf, a nobleman in service of Bishop Heahmund
• Albano Jerónimo as Euphemius, a Byzantine commander, based on the historical Euphemius of Sicily
• Paul Reid as Mannel, Queen Judith's cousin
• Khaled Abol Naga as Ziyadat Allah, an Arab ruler. Based on the historical Ziyadat Allah I of Ifriqiya
• Damien Devaney as Wilfred, a nobleman and Princess Elsewith's steward
• Tomi May as Jarl Olavosonn, Ivar's commander in York. He is loosely based on the historical warlord Bagsecg
• Erik Madsen as King Hemming, a leader of the Black Danes confederation
• Markjan Winnick as King Angantyr, a leader of the Black Danes confederation
• Gavan Ó Connor Duffy as King Frodo, a leader of the Black Danes confederation

• Gina Costigan as Runa, a former shield-maiden at Lagertha's village
• David Sterne as Gudmund, an old man at Lagertha's village
• Kathy Monahan as Eira, a former shield-maiden at Lagertha's village
• Per Fredrik Åsly as an envoy from Ubbe's trade expedition
• Oisin Murray as Tarben, a young boy at Lagertha's village
• Aoibheann McCann as Skadi, a shield-maiden under Gunnhild's command
• Fredrik Hiller as Jarl Thorkell the Tall, one the jarls of Norway and a rival to Bjorn
• Amy De Bruhn as Jarl Hrolf, one the jarls of Norway
• Brent Burns as Skane, one of Harald's ambitious followers
• Ivo Alexandre as Bishop Leon, who visits Kiev for Easter
• Russell Balogh as Bishop Aldulf, a warrior priest in King Alfred's army
• Breffni Holahan as Sister Annis, a nun who assists Queen Elsewith
• Brendan McCormack as Leof, a soldier in King Alfred's army
• Oliver Price as Galan, a soldier in King Alfred's army
• Dafhyd Flynn as Adam, a soldier in King Alfred's army
• Tim Creed as Orlyg, a slave serving King Erik in Kattegat
• Carmen Moore as Pekitaulet, Peminuit and We'jitu's mother and the Sagamaw of her tribe
• Ellyn Jade as Nikani, Peminuit's wife
• Acahkos Johnson as Na'pa'tes, a Miꞌkmaq child
• Victoire Dauxerre as Nissa, a slave in the service of Queen Ingrid in Kattegat
• Sean McGillicuddy as Osric, Bishop Aldulf's second-in-command

The following is a list of named characters who appeared in just one episode of the series.

• Gerard McCarthy as Brondsted, a Viking who attacks Lagertha
• Billy Gibson as Ulf, Earl Haraldson's bodyguard
• David Wilmot as Olaf Andwend, a Viking accused of theft
• Conor Madden as Eric Trygvasson, a Viking who is prosecuted in Kattegat by Earl Haraldson
• Cian Quinn as Olaf, son of Ingolf
• Craig Whittaker as Hakon, a Viking and one of Ragnar's men
• Des Braiden as Father Cuthbert, in charge of the monastery of Lindisfarne
• Sebastiaan Vermeul Taback as Osiric
• David Murray as Lord Aethelwulf, the brother of King Aelle
• Sean Treacy as Prince Egbert, King Aelle and Queen Ealhswith's son
• James Flynn as Eadric, a Saxon lord
• David Michael Scott as Nils, a Viking warrior from Götaland in the service of Jarl Borg

• Anna Åström as Hild, a servant in Kattegat
• Jay Duffy as Ari, King Horik's second son
• Alan Devine as Ealdorman Eadric of Wessex, serving King Ecbert
• Edmund Kente as Bishop Swithern of Winchester. Based on the historical Swithun.
• Jens Christian Buskov Lund as Olrik
• Elizabeth Moynihan as Queen Gunnhild of Denmark, King Horik's wife

• Ian Beattie as King Brihtwulf of Mercia, Kwenthrith and Burgred's uncle. Based on the historical Beorhtwulf of Mercia.
• James Murphy as Ansgar, a monk trying to convert Vikings in Kattegat. Based on the historical Ansgar.

• Cillian O'Sullivan as Eirik, a Viking warrior in Paris, former second in command of Rollo. He is betrayed by him and killed by Franks.
• Robert "Robban" Follin as Berserker, an assassin recruited by Erlendur and Kalf
• Declan Conlon as Lord Wigstan, a relative of Kwenthrith and head of the Royal Family of Mercia. Based on the semi-historical Wigstan.
• John Kavanagh as Pope Leo IV
• Adam McNamara as Thorhall, a Danish Viking
• Liam Clarke as Gudmund, a settler in Ragnar and Ivar's party
• Ed Murphy as Gardar, a settler in Ragnar and Ivar's party
• Jack Walsh as Scotus, loosely based on the historical John Scotus Eriugena
• Josh Donaldson as Hoskuld, a Viking warrior of great skill
• Tamaryn Payne as Widow Ordlaf, a lady of Sherborne

• India Mullen as Aethegyth, a noblewoman from Wessex
• Frank Prendergast as Bishop Cynebert of York
• Laurence O'Fuarain as Hakon, a whale hunter of Vestfold
• Bosco Hogan as the Lord Abbot of Lindisfarne
• Mabel Hurley as young Lagertha, appearing in a flashback
• Ross Matthew Anderson as Lagertha's father, appearing in a flashback
• Jamie Maclachlan as Aldwin, a Saxon commander
• Uncredited infant actor as Baldur, Ivar and Freydis's son

• Blake Kubena as Prince Askold of Novgorod, Oleg's brother
• Sandy Kennedy as Sylvi, a former shield-maiden at Lagertha's village
• Neil Keery as Alexei, a guard in Kiev
• Anna Maria Jopek as a singer in Kattegat
• Jinny Lofthouse as Hild, a shield-maiden under Gunnhild's command
• Emma Willis as Gyda, a shield maiden that volunteers as a sacrifice
• Karen Connell as the Angel of Death, a völva
• Adam Winnick as Rangvald, Harald's captain
• Emma Eliza Regan as Aoife, a villager from Istrehågan
• Ronan Summers as Herigar, one of Erik's warriors
• Katherine Devlin as Natasha, at Oleg's court
• Noah Syndergaard as Thorbjorn, a Viking warrior in Kattegat
• Jerry-Jane Pears as Iðunn, the goddess of youth, who appears to Hvitserk
• Bryan Larkin as Wiglaf, a Saxon commander

Continuous lines signify a lineal descent and/or consanguinity, dashed lines signify a marriage, and dotted lines signify a sexual relationship.

Haraldson ✝

Siggy ✝

Horik ✝

Gunnhild ✝

? ✝

? ✝

Thyri ✝

Bjarni ✝

Erlendur ✝

Ari ✝

Charles

Kalf ✝

Astrid ✝

Harald ✝

Halfdan ✝

Gisla

Rollo

Lagertha ✝

Ragnar ✝

Aslaug ✝

Harbard

Ingrid

Svase ✝

Gyda ✝

Þórunn

Bjorn ✝

Torvi

Borg ✝

Snaefrid ✝

Hali ✝

Asa ✝

Guthrum ✝

Siggy ✝

Erik ✝

Gunnhild ✝

William

Marcellus

Celsa

Margrethe ✝

Ubbe

Hvitserk

Thora ✝

Sigurd ✝

Ragnar

Askold ✝

Anna

Dir

Rurik ✝

? ✝

Oleg ✝

Katia

Ivar ✝

Freydis ✝

Igor

Baldur ✝

Ecbert ✝

Ealhswith

Aelle ✝

Aethelwulf ✝

Aethelwulf ✝

Judith ✝

Athelstan ✝

Blaeja

Egbert

Mannel ✝

Aethelred ✝

Alfred

Elsewith

Edward

Offa ✝

Brihtwulf ✝

Wigstan

Kenelm ✝

Burgred ✝

Kwenthrith ✝

Ragnar ✝

Magnus ✝

Floki

Helga ✝

Angrboda ✝

Eric Trygvasson ✝

Kjetill

Ingvild

Eyvind ✝

Rafarta ✝

Frodi ✝

Thorgrim ✝

Aud ✝

Thorunn ✝

Helgi ✝

Bul ✝

Asbjorn ✝

Jorunn ✝

Pekitaulet

Nikani

Peminuit

We'jitu ✝