- Leslie Howard
- Capt. Fred Allison
- Douglas Fairbanks Jr.
- Lt. Jack 'Dig' Digby
- Paul Lukas
- Col. Carl Ehrlich
- Margaret Lindsay
- Monica A. Allison
- Robert Barrat
- The Commandant
- Arthur Hohl
- Cocky
- John Bleifer
- Strogin
- William Le Maire
- Joe 'Tex' Martin
- J. Carrol Naish
- Cpl. Guarand
- Philip Faversham
- Lt. Haversham
- Frank Reicher
- Herr Hauptman - the Adjutant
- Joyce Coad
- Elsa - German Milkmaid
- Bert Sprotte
- Sergeant Major
- Harry Cording
- First Orderly
- Halliwell Hobbes
- British Major General
- Robert Adair
- Provost Marshal Officer
- Harry Allen
- British Soldier Giving German a Cigarette
- Glen Cavender
- German Sergeant at POW Camp
- Sam Harris
- German Court Officer at Trial
- Leyland Hodgson
- Maj. Hudson - British Officer Delivering Letter
- William Irving
- German Orderly
- Hans Joby
- Huntz - Ehrlich's 2nd Orderly
- John Merton
- Prisoner of War
- Paul Panzer
- German Soldier Holding Newspaper
- Reinhold Pasch
- Elsa's Lover
- Desmond Roberts
- British Officer in the Trench
- Gustav von Seyffertitz
- German Military Judge
- Paul Yetter
- German Shot by Pistol
