Robert Brubaker

as Final Judge

as Bob Haviland

as Hawkins

as Doctor

as Bill Clayton from Pittsburgh (uncredited)

as Deputy Com. Cowan

as Chief Jackson

as Sergeant Walker

as Gen. Winters

as Mayberry

as Assault Force Member (uncredited)

as Sgt. Cobb

as Assassin

as Gen. Diefenbach (uncredited)

as Cooper

as Space Flight Technician (uncredited)

as Dr. John Connor

as Wilkerman

as Chief Canfield

as Roger Milton

as Frank Brewster

as Mr. Baker

as Reese Carter

as Tower Operator (uncredited)

as The Judge

as Bartender (uncredited)

as Dr. Chambers

as Man with Monkey

as Lou Hansford

as Jack Conway (uncredited)

as Card Player (uncredited)

as Simon Peter

as Hotel Manager (uncredited)

as Businessman (uncredited)

as Major H. H. Arnold

as Head Wrangler

as Henry Wade

as Jake Hawkins

as Dave Clifford

as Murphy

as Bartender

as Floyd

as Captain Nicholas Lockyer

as Nurse

as Pedestrian (Uncredited)