Maximilian Schell as Captain Chris Hanson

Diane Baker as Laura Travers

Barbara Werle as Charley Adams

Brian Keith as Connerly

Sal Mineo as Leoncavallo Borghese

Rossano Brazzi as Giovanni

John Leyton as Rigby

J.D. Cannon as Danzig

Jacqueline Chan as Toshi

Marc Lawrence as Jacobs

Robert Hall as Guard

Victoria Young as Kiko

Midori as Midori

Niall MacGinnis as Harbor Master

Joseph Hann as Kuan

Sumi Haru as Sumi

Alan Hoskins as Jan

Geoffrey Holder as Sailor