Cast 30

1. 

   Richard Denning

   Dr. Chet Walker

2. 

   S. John Launer

   Capt. Dave Harris

3. 

   Michael Granger

   Frank Buchanan

4. 

   Gregory Gaye

   Dr. Wilhelm Steigg

5. 

   Angela Stevens

   Joyce Walker

6. Linda Bennett

   Penny Walker

7. 

   Charles Evans

   Chief Camden

8. 

   Tris Coffin

   Dist. Atty. MacGraw

9. 

   Pierre Watkin

   Mayor Bremer

10. 

    Harry Lauter

    Reporter #1

11. 

    Larry J. Blake

    Reporter #2

12. Paul Hoffman

    Tom Dunn (uncredited)

13. 

    Nelson Leigh

    Dr. Kenneth C. Norton (uncredited)

14. Edward Coch

    Jason Franchot (uncredited)

15. 

    Lane Chandler

    Gen. Saunders (uncredited)

16. 

    Don C. Harvey

    Lester Banning (uncredited)

17. 

    Richard H. Cutting

    Dick Cutting, Radio Broadcaster (uncredited)

18. 

    Paul Bradley

    Gambling Casino Employee (uncredited)

19. 

    Karl 'Killer' Davis

    Willard Pearce (uncredited)

20. 

    Terry Frost

    Tom, Policeman (uncredited)

21. 

    Cap Somers

    Policeman (uncredited)

22. 

    Tyler McVey

    Police Officer (uncredited)

23. Eddie Foster

    Bartender (uncredited)

24. Bill Clark

    Policeman (uncredited)

25. 

    Chuck Hicks

    Pilot (uncredited)

26. Dick Crockett

    Creature Who Calls Camden (uncredited)

27. George Bruggeman

    Creature (uncredited)

28. Charles Horvath

    Creature (uncredited)

29. 

    Boyd 'Red' Morgan

    Creature (uncredited)

30. 

    Michael Ross

    Creature Vernon Dunn (uncredited)

Crew 12