 Eddie AlbertMaj. MacMahon | Maj. MacMahon |
 Paul MassieGene Summers | Gene Summers |
 Lillian GishMrs. Summers | Mrs. Summers |
 James Robertson JusticeNaval Commander | Naval Commander |
 Leslie FrenchLafitte | Lafitte |
 Irene WorthLéonie | Léonie |
 John CrawfordKimball | Kimball |
 Lionel JeffriesInterrogator | Interrogator |
 Nicholas PhippsLecturer Lieutenant | Lecturer Lieutenant |
 Sandra DorneBlonde with German Officer | Blonde with German Officer |
 Jacques BruniusCmndt. Morand | Cmndt. Morand |
 Robert HendersonCol. Snyder | Col. Snyder |
 Miki IveriaLouise | Louise |
| LLillie Bea GiffordMauricette | Mauricette |
 Anne BlakeMme. Lafitte | Mme. Lafitte |
 Sam KyddFlight Sgt. Flint | Flight Sgt. Flint |
| AAnn WalfordF.A.N.Y. | F.A.N.Y. |
| DDenyse AlexanderPat | Pat |
 Philip BondNils (uncredited) | Nils (uncredited) |
| SSelma Vaz DiasPatronne (uncredited) | Patronne (uncredited) |
 Édouard FrancommeHouse Painter (uncredited) | House Painter (uncredited) |
 Jim GéraldFrançois (uncredited) | François (uncredited) |
| WWilliam E. GreeneMitchell (uncredited) | Mitchell (uncredited) |
 Geoffrey HibbertRAF Sergeant (uncredited) | RAF Sergeant (uncredited) |
 George HoldcroftTrainee Agent at Lecture (uncredited) | Trainee Agent at Lecture (uncredited) |
| BBarry JohnsTrainee Agent at Lecture (uncredited) | Trainee Agent at Lecture (uncredited) |
| MMichael KellyPilot (uncredited) | Pilot (uncredited) |
| PPeter La TrobeLouis (uncredited) | Louis (uncredited) |
 Andreas Malandrinos(uncredited) | (uncredited) |
| LLaunce MaraschalGen. Nolan (uncredited) | Gen. Nolan (uncredited) |
