Robert Wagner
Tony Petrakis
Terry Moore
Gwyneth Rhys
Gilbert Roland
Mike Petrakis
J. Carrol Naish
Socrates Houlis
Richard Boone
Thomas Rhys
Angela Clarke
Mama Petrakis
Peter Graves
Arnold Dix
Jay Novello
Sinan
Jacques Aubuchon
Demetrios Sofotes
Gloria Gordon
Penny Petrakis
Harry Carey, Jr.
Griff Rhys
Rock Hudson
Narrator (uncredited)
Jack English
Doctor (uncredited)
William Johnstone
Crewman of 'Snapper' (uncredited)