Elenco 19

1. 

   Michael Rennie

   Lord John Roxton

2. 

   Jill St. John

   Jennifer Holmes

3. 

   David Hedison

   Ed Malone

4. 

   Claude Rains

   Prof. George Edward Challenger

5. 

   Fernando Lamas

   Manuel Gomez

6. 

   Richard Haydn

   Prof. Summerlee

7. 

   Ray Stricklyn

   David Holmes

8. 

   Jay Novello

   Costa

9. Vitina Marcus

   Native Girl

10. 

    Ian Wolfe

    Burton White

11. Colin Campbell

    Prof. Waldron (uncredited)

12. John Graham

    Stuart Holmes (uncredited)

13. 

    Larry Chance

    Indian Chief (uncredited)

14. 

    Bert Stevens

    Reporter at Airport (uncredited)

15. 

    Al Bain

    Man at Airport (uncredited)

16. 

    Bess Flowers

    Guest at Zoological Institute Forum (uncredited)

17. 

    Kenner G. Kemp

    Guest at Zoological Institute Forum (uncredited)

18. Cosmo Sardo

    Guest at Zoological Institute Forum (uncredited)

19. Murray Pollack

    Guest at Zoological Institute Forum (uncredited)

Equipa Técnica 19