Euphrates (1 episode)

Harold McEwan

(1 episode)

Oscar Spinner (13 episodes)

Michael

Self

Henry Davenport (65 episodes)

Max Wartbug (20 episodes)

Beddow

Daladier

Henry Reedburn (1 episode)

Bill

Mr Sedley (11 episodes)

Dr. Barnard (1 episode)

J.C. Roebuck

Mr King

Det. Supt. David Gosling

Joe Morris

Lionel

Sir William Logie (3 episodes)

Sir Marcus Cohen (1 episode)

Richard Rees

Beadley (1 episode)

Professor Lindemann (5 episodes)

Gen. Rattenhuber

Sir Kenneth (1 episode)

Inspector Rafferty (6 episodes)

Gadsden

Sender

(5 episodes)

Troufiat

Duke of Northumberland

Mr McEwan (2 episodes)

Waldemar (1 episode)

Det. Chief Superintendent

Gray (1 episode)

Turner (1 episode)

Alan Taylor (5 episodes)

Charles Fox

Nikolai Vavilov (1 episode)

Chester Drake

Insp. Havelock

Inspector Paul

Montclair

Councillor Bass (1 episode)

Councillor Bass

John Sparrow

Emperor Napoleon Bonaparte (9 episodes)

Mr Armistead

Sergeant Oxley (1 episode)

Walter

Hymie Kossof (1 episode)

Norman Phipps (1 episode)