He wrote and starred in two series of the BBC One sitcom Big School, playing the role of chemistry teacher Keith Church.
In 2015, he starred as Tommy Beresford in the BBC series Partners in Crime based on the Tommy and Tuppence novels by Agatha Christie. To date he has sold more than 12.5 million copies and his books have been translated into 46 languages. He is the son of Peter Williams, a London Transport engineer, and Kathleen Williams, a lab technician, and grew up in Banstead, Surrey.
They were also stars of the Paramount Comedy Channel show Mash and Peas, and it was in this guise that they appeared in the Fat Les video (see above).
In 2007, he returned to non-comedy television, garnering excellent reviews for his portrayal of a suave and dangerous manipulator in Stephen Poliakoff's Capturing Mary.
In April 2012 Walliams appeared in an episode of ITV's Perspectives programme entitled "David Walliams: The Genius of Dahl".
In 2012, he narrated the ITV2 series Top Dog Model.
His book, Ratburger, will be made into a one-off drama for Sky1.
Since 2012 Walliams has been a judge on the ITV talent show Britain's Got Talent with Amanda Holden, Alesha Dixon and Simon Cowell.