Robert Vaughn

Character: Glen Manning

Merrie Lynn Ross

Character: April Adams

Keenan Wynn

Character: U.S. Secretary of Defense

Aldo Ray

Character: Karl Krauss

Victoria Carroll

Character: Secretary Julie Simmons

Kieu Chinh

Character: Major Chinn Lee

Glenn Ransom

Character: Bernard Vogel

Lynn Cartwright

Character: Assistant Brunner

Corinne Cole

Character: Greta

Carol Terry

Character: Captive

Leo Gordon

Character: C.I.A. Chief Al Norris (uncredited)