Brian Aherne

as Col. Duncan Grant

George Merritt

as Ulrich Muller

C.M. Hallard

as Commander-in-Chief

Frederick Lloyd

as Col. Jervois

B. Gregory

as Flight Commander Mayne

Mary Jerrold

as Frau Muller

Madeleine Carroll

as Rosa Hartmann

Clifford Heatherley

as Proprietor

Austin Trevor

as Captain of Military Police

Norah Howard

as Lady of the Town

Cameron Carr

as Otto Cedern

Milton Rosmer

as President of Court Martial

Alfred Drayton

as Prosecutor

Charles Paton

as Defence Counsel

Wilhelm König

as Prison Commandant