Calificación
Reparto

William Shatner
Steve Monroe

Michael Parks
Antonio DeLeon

Lee Grant
Virginia Monroe

Frank Silvera
Gen. Salazar

Victor Jory
Dr. Henry Merrill

Charles McGraw
Capt. Humphreys

Louise Sorel
Alicia Salazar

Barbara Werle
Maggie Merrill

Michael Tolan
Reynaldo Solis

Stuart Margolin
Rico

Valentin de Vargas
Colonel