Marshall Thompson

as Cmdr. Charles Ernest Prescott

Marla Landi

as Tia Francesca

Bill Edwards

as Lt. Dan Milton Prescott

Robert Ayres

as Capt. Ben Richards

Carl Jaffe

as Dr. Paul von Essen

Bill Nagy

as Police Chief Wilson

Roger Delgado

as Mexican Consul - Ramon de Guerrera

John McLaren

as State Dept. Official, Harold Atkins