Kelly Macdonald is a Scottish actress best known for her roles in the independent film Trainspotting and mainstream releases such as Nanny McPhee, Gosford Park, Intermission and No Country for Old Men; and as Margaret Schroeder in the television drama series Boardwalk Empire.
Macdonald made her acting debut as Diane, Renton's (Ewan McGregor) one-night stand in Trainspotting, in 1996. In 2001, she played Mary, a visiting servant who works for Maggie Smith's countess in Gosford Park (SAG, Critics Choice Awards for the ensemble).
Macdonald garnered the London Critics Circle Award for British Supporting Actress, a BAFTA nomination and a SAG Award (ensemble) for her performance as Carla Jean Moss, wife to hunter Llewelyn Moss (Josh Brolin) in No Country for Old Men.
Macdonald's screen credits also include Choke, with Sam Rockwell and Anjelica Huston (Sundance Film Festival Special Jury Prize for the ensemble cast), Nanny McPhee with Emma Thompson, Lassie with Peter O'Toole, All The Invisible Children for Mehdi Charef and Emir Kusturica, John Crowley's Intermission, Cousin Bette with Jessica Lange, Elizabeth with Cate Blanchett, Strictly Sinatra, Gregg Araki's Splendor, Phil Joanou's Entropy, Mike Figgis' The Loss of Sexual Innocence, Hugh Hudson's My Life So Far, Stella Does Tricks and Some Voices opposite Daniel Craig.
For Two Family House, Macdonald received an Independent Spirit Award nomination for Best Female Lead.
Macdonald also made cameo appearances in Marc Forster's Finding Neverland (as Peter Pan), Michael Winterbottom's Tristram Shandy: A Cock and Bull Story and The Hitchhiker's Guide to the Galaxy.
She also appeared in The Decoy Bride, a comedy with Alice Eve and David Tennant.
For television, Macdonald garnered an Emmy Award for her performance as the title character opposite Bill Nighy in the HBO original movie The Girl in the Cafe, directed by David Yates from a screenplay by Richard Curtis.
She co-starred with Tim Roth and John Simm in Skellig for SKY. She previously portrayed journalist Della Smith in the groundbreaking BBC miniseries State of Play.