John Henry Richardson

as Jack Chandler

as Cooper

as Dr. William Richardson

as Prison Sgt. Major

as Dr. Trent

as Foster

as Mr. Kurtz

as Bob Gordon

as Dr. Richards

as Richard Trent

as Himself

as Gerald Hillcrest

as Jasper (voice)

as Mike

as Commissioner

as Hugh Janus

as Mr. Adams

as Samanski

as Mr. Slider

as Captain Sam