Peter Cleall (born in Finchley, Middlesex) is an actors' agent and former actor who is probably best known for playing wise-cracking Eric Duffy in the London Weekend Television comedy series Please Sir! Which ran from 1968 to 1972, and its sequel The Fenn Street Gang from 1971 to 1973. He also advertised Tunes menthol sweets, as a passenger buying a train ticket to Nottingham, in 1985.