Rumpole of the Bailey interest in nineteenth-century anarchists, especially the Russian Peter Kropotkin from whom the title of the play was drawn. The character's name was later changed to Horace Rumpole when it was discovered that there was a real barrister called Horace Rumbold. The title of the play was briefly changed to "Jolly Old Jean Jacques Rousseau" before settling on the less esoteric "Rumpole of the Bailey". Mortimer was keen on Michael Hordern for the role of Rumpole. When Hordern proved unavailable, the part went to Australian-born actor Leo McKern. Mortimer was initially unenthusiastic about McKern's casting but changed his opinion upon seeing
Rumpole of the Bailey Rumpole says he is 64 years old, suggesting a birthdate of 1910 (although Leo McKern, the actor who played Rumpole, was born in 1920). Rumpole's "Oxford Book of English Verse" is inscribed "Horace Rumpole, Little Wicks School 1923. Cursed be he who steals this book," (Series 4 – 1987); in "Rumpole and the Fascist Beast" it is mentioned that he studied at Birkenshaw School, as he calls it 'a wind-blasted penal colony on the Norfolk coast'; he bought his barrister's wig in 1932; first appeared in court in 1937; first met Hilda on 14 August 1938; served in the RAF