Cast 20

1. 

   Kirk Alyn

   Blackhawk

2. 

   Carol Forman

   Laska

3. 

   Carol Forman

   Chuck

4. 

   John Crawford

   Chuck

5. 

   Michael Fox

   Mr. Case

6. 

   Don C. Harvey

   Olaf

7. 

   Rick Vallin

   Stan / Boris

8. Larry Stewart

   Andre

9. Weaver Levy

   Chop Chop

10. 

    Zon Murray

    Bork

11. 

    Nick Stuart

    Cress

12. 

    Marshall Reed

    Aller

13. 

    Pierce Lyden

    Dyke

14. 

    William Fawcett

    Dr. Rolph [Chs. 4-7]

15. 

    Rory Mallinson

    Hodge [Chs. 11-14]

16. 

    Frank Ellis

    Hendrickson [Chs. 1-2, 4, 8-9]

17. Marshall Bradford

    Malcolm Smith [Ch. 10]

18. 

    Frank Gerstle

    Dawson [Chs. 7-8]

19. 

    Charles Horvath

    Otto Helger [Chs. 12-13]

20. 

    Knox Manning

    Narrator (voice)

Crew 6