Peter Lawford
— Capt. Dion Lenbridge
Richard Greene
— Capt. Thomas Garron
Janice Rule
— Jane Wensley
Leo G. Carroll
— Col. Henry Lenbridge
John Abbott
— Herbert Bielensen
Patrick Aherne
— Maj. Wensley
John Dodsworth
— Maj. MacStreet
Herbert Deans
— Prosecutor
Hayden Rorke
— Maj. Fallow
John Lupton
— Lt. Jersey
Barry Bernard
— Sergeant
Charles Davis
— Cpl. Biggs
Jack Raine
— Gen. Woodbury
Richard Hale
— Igor
Michael Pate
— Crane
Robert Stevenson
— Signaler (uncredited)