Stuart Whitman as Mark Forrest

Edmund Purdom as Rex Larson

Woody Strode as Cal

Harold Sakata as Tobachi

Laura Gemser as Maria

Glynis Barber as Janice Jefferson

David De Martyn as Douglas Jefferson

Mike Cohen as Boat Captain

Junix Inocian as Fernando

Protacio Dee as Col. Susumo Yakuchi

Ken Watanabe as Lt. Toyoda