Arabella Weir

Weir was born in 1957, in San Francisco, California, United States, to Scottish parents. She is the daughter of former British ambassador Sir Michael Weir and his wife, Alison (née Walker), who had met while studying at the University of Oxford; her father was from Dunfermline and her mother was from the Scottish Borders, daughter of the headmaster of a small boarding school.

Weir attended nursery school in Washington D.C., where her father was posted as a member of the British diplomatic corps. She later attended the Sacre Coeur Convent in Cairo, and the French Lycee in London. Having spent many holidays in Scotland as a child, Weir describes herself as "culturally Scottish". After her parents' divorce she initially lived with her mother, her two older brothers and her younger sister in the UK. She has described her relationship with her mother as difficult, and in her comedy routine has exposed her mother's "cruel, snobby campaign to shame her into losing weight." Weir's relationship with her mother later became the subject of her debut one-woman show, Does My Mum Loom Big in This? At the age of nine she moved to Bahrain with her father while her brothers were at prep school and her younger sister stayed with their mother.

Weir returned to London after passing the eleven-plus in Bahrain and her father was posted to New York. She was a pupil at the Camden School for Girls, where her mother was a teacher, and then studied drama at Middlesex Polytechnic. As a teenager, she was a backing singer in the British pub rock band Bazooka Joe, whose bass player was Stuart Goddard, who later became famous as Adam Ant. Weir's television career breakthrough came in 1994 in BBC's The Fast Show; she later also became widely known for her roles in Posh Nosh and Two Doors Down. In addition to acting, Weir wrote several episodes of The Fast Show and Posh Nosh, and has also written for The Independent and The Guardian.

In 1998, Weir published the international bestseller Does My Bum Look Big in This?, the title of which was a catchphrase of her character "Insecure Woman" in The Fast Show. In 2000, she published her second novel Onwards and Upwards, followed by Stupid Cupid in 2002.

In 2001, Weir took part in the Weakest Link Comedians Special. In 2006, Weir appeared as a contestant in the first series on Celebrity MasterChef. In 2007, Weir appeared in Skins as Michelle Richardson's mother, Anna.

Weir played Chris Harper in Calendar Girls at the Noël Coward Theatre in the West End of London from November 2009 until the play closed in January 2010.

Weir voiced the female incarnation of the Doctor in the Doctor Who Unbound Big Finish 2003 episode Exile. American alternative weekly Houston Press's Jef Rouner described her portrayal as "one of the most melancholy of all the Doctors." Weir appeared in the Doctor Who 2011 Christmas Special The Doctor, the Widow and the Wardrobe.

Weir performed with the original cast from The Fast Show (with the exception of Mark Williams) in six online-only episodes sponsored by the Fosters brand.

From 2013 until 2016, she starred as Jenny in Drifters. In 2015, she joined the team of presenters for BBC Two's Food and Drink programme. She also played a small role in Citizen Khan in the mid-2010s. She has also appeared with Ready Steady Cook.

Since 2016 she has been starring in the BBC Scotland sitcom Two Doors Down. Weir's performance was criticised by Ben Arnold, commenting in The Guardian "her Scottish accent [is] still a work in progress, it would seem." When Weir was asked about this comment on Richard Herring's RHLSTP comedy podcast, she said she was doing specifically a Paisley accent on the show and that both her parents were from Scotland, which she considers her home. Weir added that Scottish actor David Tennant had responded to The Guardian's comment with the words "What the f*** are they on about, it's impeccable!", and that Ben Arnold (who himself is English) had later said to her he was sorry for making the comment.

In June 2019, Weir premiered her debut one-woman show, Does My Mum Loom Big in This?, a comedic analysis of Weir's helter-skelter childhood and her difficult relationship with her late mother. The show's title is a pun on Weir's bestselling novel Does My Bum Look Big in This? She took the show to the 2019 Edinburgh Festival.

In 2021, Weir narrated the pilot episode of the E4 survival reality competition format Naked, Alone and Racing to Get Home. Sean Pertwee replaced her for the full series.

Weir appeared in three episodes of Coronation Street as Aggie and Ed Bailey's old neighbour, Yvette, in June 2023.