David Edward Williams (known professionally as David Walliams) is an English actor, comedian, writer, and television personality. He was born on 20 August 1971. Walliams 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). He is also a renowned children's book author, having sold more than 50 million copies worldwide.

Walliams began writing children's novels in 2008 after securing a contract with HarperCollins. His books have been translated into 53 languages, and he has been described as the "fastest-growing children's author in the UK," with a literary style similar to Roald Dahl. Some of his books have been adapted into television films, including Mr Stink (2012), Gangsta Granny (2013), and Billionaire Boy (2016).

From 2013 to 2014, Walliams 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. From 2012 to 2022, Walliams was a judge on Britain's Got Talent, winning Best TV Judge at the National Television Awards in 2015, 2018, 2019, and 2020. In 2022, he was a judge on Australia's Got Talent.

Walliams was appointed Officer of the Order of the British Empire (OBE) in the 2017 Birthday Honours for his services to charity and the arts. His charity work includes swimming the English Channel, Strait of Gibraltar, and River Thames, raising millions of pounds for the BBC charity Sport Relief.