Joseph Cotten as Howard Graham

Dolores del Río as Josette Martel

Ruth Warrick as Mrs. Stephanie Graham

Agnes Moorehead as Mrs. Mathews

Orson Welles as Colonel Haki

Everett Sloane as Kopeikin

Jack Durant as Gogo Martel

Eustace Wyatt as Prof Haller - German archeologist

Frank Readick as Matthews - Cockney socialist

Edgar Barrier as Kuvetli - tobacco salesman

Jack Moss as Peter Banat - obese gunman

Stefan Schnabel as Translator for ships captain

Hans Conried as Swami magician

Robert Meltzer as Ship baggageman / Head waiter

Richard Bennett as Ship's Captain