Ewan Roberts

as McKern (1 episode)

as Parkinson (18 episodes)

as Laboratory Technician

as Maj. McDougal

as Hopkins

as Desmond Cross (1 episode)

as Customer at Petrol Station (uncredited)

as Committee Member

as Gavin Hamilton (1 episode)

as Hamish Gillespie

as Deighton

as Dr. Soames

as Det. Insp. Simons

as Inspector Mackenzie (1 episode)

as Col. Burlinson

as Morton, Earl of Lenox (5 episodes), as Munro (6 episodes)

as Jimmy

as Travers (2 episodes)

as Craig (1 episode)

as Superintendent Rees (1 episode)

as Lloyd Williamson

as Mr. Frazer (1 episode)

as Hotel Porter

as Sergeant Rutherford