He is best known for his roles as Inspector Cyril `` Blakey '' Blake in the LWT sitcom and film versions of `` On the Buses '' , appearing for the length of the series , ( along with Bob Grant and Anna Karen ) , Clem `` Smiler '' Hemmingway in `` Last of the Summer Wine '' , and Harry Lambert in BBC Television 's `` Oh , Doctor Beeching ! ''
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 ! ''