as Dr. Chet Walker

as Capt. Dave Harris

as Frank Buchanan

as Dr. Wilhelm Steigg

as Joyce Walker

as Penny Walker

as Chief Camden

as Dist. Atty. MacGraw

as Mayor Bremer

as Reporter #1

as Reporter #2

as Tom Dunn (uncredited)

as Dr. Kenneth C. Norton (uncredited)

as Jason Franchot (uncredited)

as Gen. Saunders (uncredited)

as Lester Banning (uncredited)

as Dick Cutting, Radio Broadcaster (uncredited)

as Gambling Casino Employee (uncredited)

as Willard Pearce (uncredited)

as Tom, Policeman (uncredited)

as Policeman (uncredited)

as Police Officer (uncredited)

as Bartender (uncredited)

as Policeman (uncredited)

as Pilot (uncredited)

as Creature Who Calls Camden (uncredited)

as Creature (uncredited)

as Creature (uncredited)

as Creature (uncredited)

as Creature Vernon Dunn (uncredited)