The Lady Marjorie Helen Sybil Bellamy (nee Talbot-Carey; 6 May 1860 or 12 July 1864 – 15 April 1912) is a fictional character in the ITV drama Upstairs, Downstairs. The character was a regular member of the show in series one and two, and a guest in series three. She was portrayed by Rachel Gurney, who initially declined the role.^[1]

In the narrative of Upstairs, Downstairs, Lady Marjorie was born on 6 May 1860 (according to the episode "A Family Gathering") A Family Gathering is the second season finale and the 26th episode overall of the 1970s UK period Drama, Upstairs, Downstairs. It was written by Alfred Shaughnessy and directed by Raymond Menmuir. on 12 July 1864 (according to the episode "Desirous of Change") at Southwold, Wiltshire, to Walter Talbot-Carey, 12th Earl of Southwold and Mabel, the Countess of Southwold. She had one brother, Hugo, and a paternal aunt, uncle and cousin.

The fictional character was married to Richard Bellamy (portrayed by David Langton) in 1880 and had two children, James (portrayed by Simon Williams) and Elizabeth (portrayed by Nicola Pagett). Their home was at 165 Eaton Place.

At the end of the second series, the character departed the show by boarding RMS Titanic, after which she was presumed dead.^[1]

Miss Forrest" is the first episode of the third series of the British television series, Upstairs, Downstairs. The episode is set in 1912, and is the last appearance of Rachel Gurney as Lady Marjorie Bellamy. It also introduces Hazel Forrest (Meg Wynn Owen), who becomes the new mistress of 165 Eaton Place later in the series.