Marc Warren is an English actor, known for his roles in British television series such as Band of Brothers, Hustle, The Vice, State of Play, Mad Dogs, The Musketeers, Jonathan Strange & Mr Norrell, and Van Der Valk. He was born in Northampton, England, in 1967. He studied acting at the East 15 Acting School in Essex.

Warren made his professional acting debut in 1986 in the play Stags and Hens at the Northampton Theatre Royal. He has since appeared in numerous stage productions, including Kes, Kingdom of Earth, and To Kill a Mockingbird. Warren's breakthrough television role came in 2001, when he played Albert Blithe in the HBO miniseries Band of Brothers. He has since starred in a number of other successful television series, including Hustle, The Vice, State of Play, Mad Dogs, The Musketeers, Jonathan Strange & Mr Norrell, and Van Der Valk. Warren has also appeared in a number of films, including Love Actually, The Other Boleyn Girl, and The Woman in Black. In 2013, Warren was awarded the British Independent Film Award for Best Supporting Actor for his performance in the film Hyde Park on Hudson. Warren is married to actress Polly Walker and they have two children.