Stephen Lewis (17 December 1926 – 12 August 2015) was an English actor, comedian, director, screenwriter, and playwright. He was best known for his roles as Inspector Cyril "Blakey" Blake in the LWT sitcom "On the Buses", Clem "Smiler" Hemmingway in "Last of the Summer Wine", and Harry Lambert in BBC Television's "Oh, Doctor Beeching!".