John Le Mesurier ( , born John Elton Le Mesurier Halliley; 5 April 191215 November 1983) was an English actor. He is perhaps best remembered for his comedic role as Sergeant Arthur Wilson in the BBC television situation comedy "Dad's Army" (1968–77). A self-confessed "jobbing actor", Le Mesurier appeared in more than 120 films across a range of genres, normally in smaller supporting parts.
John Le Mesurier appeared in every genre identified by scholars.