- Brian Aherne
- Col. Duncan Grant
- George Merritt
- Ulrich Muller
- C.M. Hallard
- Commander-in-Chief
- Frederick Lloyd
- Col. Jervois
- Beresford Gregory
- Flight Commander Mayne
- Mary Jerrold
- Frau Muller
- Madeleine Carroll
- Rosa Hartmann
- Clifford Heatherley
- Proprietor
- Austin Trevor
- Captain of Military Police
- Norah Howard
- Lady of the Town
- Cameron Carr
- Otto Cedern
- Milton Rosmer
- President of Court Martial
- Alfred Drayton
- Prosecutor
- Charles Paton
- Defence Counsel
- Wilhelm König
- Prison Commandant
- Gordon Harker
- Pvt. Waller
- Gibb McLaughlin
- Pvt. McTavish
- Robert Harris
- Subaltern
- Arthur Hambling
- Minor Role
- Miles Malleson
- Minor Role
- Merle Oberon
- Woman at Cafe Table
