Acting · b. 1935 · Rotherham, Yorkshire, England, UK Derek Chafer Acting Brannigan Policeman (uncredited) 1975 Murder Motel Policeman Arresting Petra (uncredited) 1975 The Crazy Kill Policeman (uncredited) 1975 Carry On Behind Man in Audience (uncredited) 1975 1+1=1.5 Man 1969 Doctor Who: The Invasion Cyberman 1968 Agent-readable