Basil Henson

(1 episode)

as Colonel Ross

(1 episode)

(51 episodes)

(1 episode) as Hinchcliffe

(1 episode) as Dr. Abbott

(1 episode) as Von Moltke

(2 episodes)

as Charles Merrow

as Dr. Lucas

(1 episode) as Charles Merrow

as Oxted

(4 episodes) as Prince Vasili Kuragin

(1 episode)

(2 episodes) as Dr. Chisolm

(3 episodes) as The Hon. Mr. Justice Yearsley

(3 episodes) as Mr. Justice Yearsley

as Doctor (uncredited)

(1 episode)

(1 episode) as Basil Stewart

as Hunter

as Hacker

(1 episode) as Brigadier

as The Inspector

as Charles Baldon

as Oliver Manson

(1 episode) as Wolf Eisen

(1 episode) as Frank Houghton

as Dr. Tirpitz

(1 episode)

as The Stranger

as Alec Prosser-Jones

(1 episode) as Major Andrew Carlyle

(1 episode) as Inspector

as Derreck Alwyn

as Mr. Arditti

(1 episode) as Peter Naylor

(1 episode)