Frank Windsor

as Mr. Walker

as Sir James Valentine (1 episode)

as Frank Wood

as George Meakham (1 episode)

as Ken Alton (2 episodes), as Peter Osborne (2 episodes)

as Chief Superintendent (8 episodes)

as Insp Mackenzie

as James Llewellyn

as Harry Bradley (13 episodes)

as Commander Wills (1 episode)

as Ted Shaw

as Chorus

as Kenneth Samuels (8 episodes), as Leslie Smith (1 episode)

as David (1 episode)

as Ralph Peagram (1 episode)

as Gen Washington

as Gridley (2 episodes)

as Glass

as Harry Ainsworth (4 episodes)

as Ranulf

as Businessman in restaurant

as Sam Herman

as Self (1 episode)