John Hodiak as Daniel Young

Linda Christian as Jeanne

Stephen McNally as Mitch Turner

Martin Milner as Andy Sayer

Dave Willock as Smitty

Jack Larson as James O'Doole

Richard Emory as Mike Orlin

Philip Ahn as South Korean Guerrilla Leader

Carleton Young as Colonel

Jeffrey Stone as Lt. Pilot

Todd Karns as Officer

Gil Stratton as Marine Runner

Charles Bronson as Marine Private (uncredited)

Alvy Moore as Marine Marine (uncredited)

Dorothy Patrick as Danny's Girl (uncredited)

Ray Walker as Colonel (uncredited)

George Conrad as Sailor (uncredited)