Garfield Mark "Gar" Logan is a superhero that appears in fictional the DC Universe. The character was created Arnold Drake and Bob Brown, and first appears in Doom Patrol #99 (November 1965).

As a child, Garfield contracted a rare illness called Sakutia and is cured by a serum extracted from a green monkey. This serum had the unintended effect of turning his skin and hair green and granted him the ability to morph into any animal of his choice. His parents later dies in a boating accident, which to this day, Garfield believes he could have prevented. After he is saved from two kidnappers that try to use his powers to help them in their crimes, Garfield is left under the care of his despised guardian, Nicholas Galtry. Galtry is unhappy that Garfield is alive and plots to kill the boy in order to claim his inheritance. The various villains he hire to kill young Logan are impeded by the Doom Patrol, whose members, Rita and Steve Dayton adopts Garfield, who joins the superhero team, taking the name, Beast Boy. In his days with the Doom Patrol, Garfield has a romantic relationship with a girl from his high school named Jillain Jackson. After he saves her from Galtry (who was using the alias "Arsenal"), the relationship dissolved. Beast Boy is the only survivor of the Doom Patrol, a loss which deeply affectes him.

He later joins the West Coast team of the Teen Titans (known as Titans West), and is part of the New Teen Titans assembled by Raven. At this time, Garfield takes the name Changeling. He remains with various incarnations of the team, and forms a close friendship with Cyborg. He later uses the name Beast Boy again, under which he gets his own miniseries Beast Boy. Following a failed attempt to recreate "Titans West" as "Titans L.A.", as recounted in Titans Secret Files #2 (October 2000), Garfield rejoins the main team.

Beast Boy's character is often used as comic relief. However, this is only a facade, as he uses humor to hide a deep inner pain. Beast Boy has suffered many hardships in his life (both his real parents have died, and his foster mother, whom Garfield became very close to, died in battle along with virtually all of the other Doom Patrol members with whom he was part of the team and his foster father was driven mad by a helmet he used to fight enemies). During his time with The New Teen Titans, Gar fell in love with Terra, a young girl with earth-manipulating powers and fellow Teen Titans member, who turned out to be a spy working for Deathstroke. Despite all his hardships, Garfield is friendly and upbeat.

While the events of Infinite Crisis unfold, details of Beast Boy's life "One Year Later" are revealed in the current Teen Titans comic book. Teen Titans vol. 3, #34 (May 2006) shows scenes from the year between the conclusion of Infinite Crisis and One Year Later, from the damaged Cyborg's POV. Garfield leads the Teen Titans, before quitting the team following the breakup of himself and Raven. He then joins his original team, the Doom Patrol, citing that the team need his help and that Robin can handle leadership. He is also feeling uneasy about remaining in a team without Cyborg. After Cyborg awakes, Beast Boy and the rest of the Doom Patrol helps the Titans fight off the Brotherhood of Evil, who have managed to clone Brain. The clone is a failure, however, and Mallah ends up tearing Brain's head off so that he can preserve his master's brain.

After returning, Beast Boy is infuriated to discover that the Chief has been manipulating them and trying to do the same to Kid Devil. Garfield and his parents stands up to the Chief and made him step down as the Doom Patrol's leader. Beast Boy stays on his old team saying that they still needs him. However, he does answer a call from Raven to help the Titans combat Titans East.

In Titans #1 (2008), Gar is attacked by Trigon, who floods his room with lava. In retaliation, Gar joins the new Titans team, wearing a costume similar to his old Changeling uniform.

Beast Boy has the ability to morph into any animal that he has seen himself or has seen in an illustration (as is the case when he shapeshifts into an animal such as an extinct dinosaur). These transformations take only a second and Beast Boy has demonstrated that he is capable of rapidly changing his form with little or no effort expended. His power enables him to completely alter his body mass, being able to take the shape of animals far larger and heavier than himself, such as an elephant, a hippopotamus, or a Tyrannosaurus Rex (though until recent stories, such larger forms would physically exhaust him), or smaller and lighter animals such as mice and insects. His power also enables him to radically alter his body structure and take forms of animals without limbs, like snakes, or those without skeletons like a jellyfish. In two notable instances, he has even taken the form of multiple individuals simultaneously (once as a swarm of fireflies, and again as a mass of barnacles). While as an animal, he gains all the physical abilities and characteristics of said animal, such as great strength (a gorilla), speed (a cheetah), and durability (a turtle), and abilities such as flight (various birds), and aquatic breathing (various fish). He can even gain the specific poison produced by specific snakes. While in animal form, Beast Boy retains his human intellect, memories, and the ability to speak. No matter what form he takes, his skin, hair, and eyes remain green, making most of his animal forms easy to distinguish from real animals of that species.

When Raven implanted Garfield with an evil seed of her father Trigon, he began to transform into more demon-like creatures. Eventually, he found himself more comfortable in these horrific shapes rather than as a human, and stayed shifted. After becoming completely corrupted by the evil seed, he was used by Raven and Trigon, but eventually returned to normal.

Beast Boy has gained a new "Super-Animal" form made with the traits, strengths, and abilities of all the animals in the world. This gives him a multitude of abilities from a falcon's vision to beyond a tyrannosaurus's strength. This animal form has a constant feral attitude, and Gar has problems controlling its powers and mental state. This form appears in the Teen Titans animated series as stated below.

In the "Titans Tomorrow" storyline, Garfield calls himself Animal Man. In this storyline, he has the power to use more than one animal power at a time such as using an amoeba's power to spilt to create copies of himself while in the form of another creature. He also demonstrates the ability to become mythical animals.

In Kingdom Come (also set in an alternate future), Beast Boy has changed his name to "Menagerie" and, for unspecified reasons, can only transform into mythical creatures.

Beast Boy appears in the Teen Titans animated series, voiced by Greg Cipes. In the series, Beast Boy (nicknamed "BB", and others) plays the role of the lighthearted jokester of the group, though often the butt of many jokes himself (similar to his comics self). He wears a black and purple Doom Patrol uniform, complete with gray gloves and purple sneakers with seemingly velcro straps.^[1] The costume also has a mask;^[2] he discarded it after Cyborg told him it was goofy, and Raven pointed out that the mask would not hide his secret identity anyway, and since his skin is green, he does not really have one. Beast Boy also has pointy ears, which he finds to be an attractive quality of himself. His appearance is much younger than in the comics. The ears were adapted to the comics in Teen Titans vol. 3. He exhibits very feral habits as well, such as sitting with his feet on his chair and moving his ears up and down. Beast Boy's ability to speak in animal form is normally absent in the series unless taking the form of an animal that can talk, such as a parrot.^[3]

Beast Boy is a vegetarian, having transformed into many of the meat-producing animals.^[4] (though technically he is a vegan). He is also prone to causing much of the mischief around Titans Tower, such as the time he kept a large mutant moth larva hidden in his bedroom, whom he named Silkie. In "Can I Keep Him?," the larva devours much of the Tower while the team is on a mission fighting Johnny Rancid. While trying to hide him from the others, Beast Boy entrusts Starfire to hide Silkie, but she ends up adopting the creature.

Like in the comics, Beast Boy also had a romantic relationship with Terra who had the power of Earth manipulation. As in the comic book, Terra betrays the Teen Titans as an ally of Slade (Deathstroke). Ultimately, she receives redemption in helping the Titans defeat Slade; however, she is turned to stone in the process. In a departure from the comic book, Beast Boy retains strong feelings for Terra. This is evident in "The End: Part 2" when "Evil Beast Boy", (an evil clone of BB created by Trigon, representing his evil side), states, "You had enough? No wonder Terra dumped you!"; this insult angers Beast Boy. In the final episode "Things Change", Beast Boy saw Terra, although it is unclear whether or not it was the real Terra, as he was the only Titan who saw her. Terra may have suffered amnesia when Beast Boy last saw her. The episode was designed to serve in much the way JLUs' second season finale "Epilogue" was designed to wrap up the Batman portion of the DCAU, focusing on one or two central characters and resolving unapproached issues.

In the Season 3 episode "The Beast Within", Beast Boy was seen in a his newly gained "Super-werewolf," or more often called "Beast", form when he was doused with an experimental DNA compound. The Titans had assumed that he had used this form to attack Raven. However, it was in fact Adonis, who had been affected by the compound as well, who attacked her; Beast Boy was actually protecting Raven from him. Beast Boy disliked this form and refrained from using it again until he and the other Titans were fighting off Slade's fire-soldier army in "The End: Part 1" when they had to use their most powerful abilities to defeat them. He never used it after then, suggesting that even with the strength and abilities it gave him, he considered it a "last resort" to be used.

In the episode "Betrothed", Beast Boy had noticed an alien animal which looked like a dog without any ears. He called it cool but the alien animal scared him, which led to the result of Raven having to tell him that he was the alien as they were "aliens" on Tamaran. Later, when they were fighting the soldiers, Beast Boy managed to morph himself into that same animal, which had also scared the soldiers away. Cyborg asked how he did that and his reply was "Lucky guess."

Season 5 of Teen Titans focuses on Beast Boy a great deal, as it deals with his history as a member of the animated series' incarnation of the Doom Patrol. Until "Homecoming", in which his former teammates make a guest appearance, Beast Boy was the only member of the Doom Patrol to appear on the show. In the second episode of the fifth season, Beast Boy becomes the first male Titan in the series to be explicitly referred to by his real name (Garfield). In "Titans Together", Beast Boy shows a remarkable amount of leadership skills and leads Herald, Jericho, Pantha, and Más on an assault on the Brotherhood of Evil. He remains the leader even after other Titans such as Cyborg, Starfire, and Raven join the fight. Beast Boy only stands down from leadership when Robin is thawed; thus fulfilling his dream (revealed in the episode "Go!") to be Robin's sidekick.

One part of Beast Boy's depiction in the animated series that has garnered attention is his effort to form a connection with his teammate, Raven, going so far as to make a decisive effort to get her to respond to his jokes. His comedic and innocent nature often plays off on Raven's more distant and harsh one, and certain episodes focus on building their friendship.

Beast Boy and Raven were intentionally written by David Slack, Titans head writer, as a "married couple", hence the relationship was one of deep loyalty and affection, but also laced with conflictive personality clashes. The only clear and establshed romantic relationship Beast Boy had in the series was with Terra, as the series stayed true to the classic Teen Titans comics such as The Judas Contract. This "tough love" relationship between Beast Boy and Raven however is continued in Titans in Tokyo, also written by Slack.

Beast Boy has an obsession with owning a vehicle of his own, more specifically, a moped. In one episode, he acquires one and affectionately calls it the "B-Ped" and rides with a helmet, goggles and scarf that could be seen as a parody of Haruko and her Vespa from the anime FLCL (which might be a nod to the more anime-ish aspects of the show). Ironically, after using it to save the world from killer tofu, it falls to pieces. He often has fantasies of impressing girls on a moped, dressed in a stereotypical French style: black and white striped shirt, black trousers, and a beret. Beast Boy jokes about changing his name to Beastman or Beastdude at the end of "The Beast Within" as a response to Raven calling him a man for knowing when to let out his 'Beast Within'.

His background is delved into further in Teen Titans Go! #45. When he was younger, Beast Boy fell ill due to being bitten by a green monkey. To save him, his parents attempts to cure him resulted in his shape changing abilities. They later died in a flood, leaving Beast Boy as an orphan. Afterwards, Beast Boy determined to join Doom Patrol and broke into their quarters. He was treated as an intruder, but his effort to escape capture impressed them, thus earning his membership on the team.

It should also be noted that Beast Boy shows high intelligence at times. A good note would be the episode "Homecoming 2" where he was able to override a computer in the Brain's fortress and rewrite the coordinates for the fortress itself, which is odd as he is able to outsmart a being known to have high enough intelligence to be dubbed "Intelligence personified". He is also able to realize what animal he must turn into for any threats, instantaneously. He is can form ingenious battle plans as seen in the episode "Calling All Titans". In the episode "The Beast Within", Beast Boy lost the first time he fought against the Titans but easily beat them the second time; this showis his ability to immediately adapt to any situation.