Derek Robert Nimmo was an English character actor, producer and author. He is best remembered for his comedic upper class "silly ass" and clerical roles including Revd Mervyn Noote in the BBC1 sitcom All Gas and Gaiters (1966–71).

All Gas and Gaiters is a British television ecclesiastical sitcom which aired on BBC1 from 1966 to 1971. It was written by Pauline Devaney and Edwin Apps, a husband-and-wife team who used the pseudonym of John Wraith when writing the pilot. All Gas and Gaiters was also broadcast on BBC Radio from 1971 to 1972.