[1] His father Cyril Theron Campion (1894–1961) – a playwright and screenwriter – and Blanche Louise Tunstall née Bear (1890–1933) – a first cousin of Charlie Chaplin – married in 1920 in London.

[3] He won a place at RADA at age 15, and appeared in numerous films and television programmes – mostly comedies.

[4] In 1937, he appeared in Tavs Neiiendam's radio play Inspiration to a Poet on the BBC Home Service.

[6] Campion later reprised the role (now Lord Bunter of Hove, who had succeeded in betting shops and property) in the BBC Radio 7 series Whatever Happened to ...?

in the episode that speculated on whether Bunter's form master at Greyfriars School, Horace Henry Samuel Quelch, became a secret agent.