 The following year he starred alongside Coronation Street star Chris Gascoyne in Central Television's series for schools, "Starting Out".In 1989, Whitlock played his most notable role, that of Sydney Chaplin, the elder half-brother of Charlie Chaplin, in the television movie "Young Charlie Chaplin" by Bazz Taylor.Further well-known series where he had roles were "Split Ends", "EastEnders", "Harry Enfield's Television Programme", "Lovejoy", "Soldier Soldier", "Boon", "Grange Hill", "A Touch of Frost", "The Detectives", "Silent Witness", "McCallum", "Casualty", "London's Burning", and "The Bill".