Humphrey Bogart

Jean Matrac

Claude Rains

Capt. Freycinet

Michèle Morgan

Paula Matrac

Philip Dorn

Renault

Sydney Greenstreet

Maj. Duval

Peter Lorre

Marius

George Tobias

Petit

Helmut Dantine

Garou

John Loder

Manning

Victor Francen

Capt. Patain Malo

Vladimir Sokoloff

Grandpere

Eduardo Ciannelli

Chief Engineer

Corinna Mura

Singer

Fred Aldrich

Seaman (uncredited)

Charles Andre

Navigator (uncredited)