David Edward Williams (born August 20, 1971), known professionally as David Walliams, is an English actor, comedian, writer, and television personality. He is best known for his work with Matt Lucas on the BBC sketch comedy series Little Britain (2003–2006) and Come Fly With Me (2010–2011). From 2012 to 2022, Walliams was a judge on the television talent show competition Britain's Got Talent on ITV. He is also a writer of children's books, having sold more than 37 million copies worldwide.

Walliams played the role of Greville White in the 2007 television drama film Capturing Mary. From 2013 to 2014, he wrote and starred in the BBC One sitcom Big School. In 2015, he starred as Tommy Beresford in the BBC drama series Partners in Crime and wrote and starred in the sketch comedy series Walliams & Friend. Walliams won the award for Best TV Judge for his work on Britain's Got Talent at the 2015, 2018, 2019 and 2020 National Television Awards. In 2022, he was a judge on the tenth season of Australia's Got Talent.