Big School is a British sitcom, starring David Walliams, Catherine Tate, Steve Speirs, Frances de la Tour, Joanna Scanlan and Philip Glenister. It is set in a secondary school and follows the comedic relationships of the teachers. The first series began airing on BBC One on 16 August 2013, and was met with polarised reviews. The final episode of the first series aired on 20 September 2013. On 2 December 2013, BBC One controller Charlotte Moore announced that Big School had been renewed for a second series, which concluded on 10 October 2014. In June 2015, it was officially announced that Big School would not be returning for a third series.

David Edward Williams, known professionally as David Walliams, is an English comedian, actor, 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.