Actors

Actor

Timmie Merrinoe

Actor

Dr. Tom Merrinoe

Actor

Mary Merrinoe

Actor

Gen. Swayne

Actor

Prof. Frank Allerton

Actor

Col. Macklin

Actor

Arthur Kelvaney

Actor

Prof. Baine

Actor

Dr. Bannerman

Actor

Prof. Zeller

Actor

Prof. Foster

Actor

Martin / Computer

Actor

1st Gate Sergeant

Actor

2nd Gate Sergeant

Actor

Capt. McLaren (uncredited)

Actor

Miss Vandergrift (uncredited)

Actor

Scientist (uncredited)

Actor

Young soldier (uncredited)

Actor

Robby the Robot (voice) (uncredited)