Richard Widmark
Capt. Adam Jones
Bella Darvi
Denise Montel
Victor Francen
Prof. Montel
Cameron Mitchell
'Ski' Brodski
Gene Evans
Chief Holter
David Wayne
Tugboat Walker
Stephen Bekassy
Neuman
Richard Loo
Hakada Fujimori
Robert Adler
Welles (uncredited)
Eugene Borden
French Reporter (uncredited)
Leslie Bradley
Mr. Aylesworth (uncredited)
John Wengraf
Col. Schuman (uncredited)
Harry Carter
Cactus Mack
Ron Nyman
Henry Kulky
McCrossin (uncredited)
Peter Ortiz
Crewman (uncredited)
Ray Stevens
Crewman (uncredited)
Ben Wright
BBC Announcer (uncredited)
Harry Denny
Frank Kumagai
Eddie Lee
Rollin Moriyama
Don Orlando
Beal Wong
