Derek Chafer Details Cast On MovieCast On TV Name Derek Chafer Also Known As Derek Chaffer Birthday Gender Male Place of Birth Rotherham, Yorkshire, England, UK As: Cyberman1968-12-21Doctor Who: The Inva... As: Policeman (uncredite1975-03-21Brannigan... As: Policeman (uncredite1975-02-25The Crazy Kill... As: Policeman Arresting 1975-05-24Murder Motel... As: Cyberman1963-11-23Doctor Who... As: Saboteur1978-01-28Enemy at the Door...