John Mathewson
Paul Stephens
Jenny Anderman
Elizabeth Stephens
Lt. Col. Conroy
Radiation Controls Officer
Night Guard
Relief Guard
Science Teacher
Eccles (as John David Cullum)
Roland (as Abe Unger)
Max
Howard
C-4 Guy (uncredited)
Government Aide
Laser Efficiency Kid (as Richard Cardona)
Jenny's Parent
Day Attendant
General
Scientist
Lab Assistant
Tennis
