Cast 17

1. 

   Hedy Lamarr

   Tondelayo

2. 

   Walter Pidgeon

   Mr. Harry Witzel

3. 

   Frank Morgan

   The Doctor

4. 

   Richard Carlson

   Mr. Langford

5. 

   Reginald Owen

   Skipper of the Congo Queen

6. 

   Henry O'Neill

   The Reverend Dr. Roberts

7. 

   Bramwell Fletcher

   Wilbur Ashley

8. 

   Clyde Cook

   Ted, First Mate of the Congo Queen

9. 

   Leigh Whipper

   Jim Fish

10. 

    Oscar Polk

    Umeela

11. 

    Darby Jones

    Darby

12. 

    Richard Ainley

    Mr. Worthing

13. 

    Jim Davis

    Seaplane Pilot (uncredited)

14. John Burton

    Jim Benson (uncredited)

15. 

    Delos Jewkes

    Native Singer (uncredited)

16. 

    Martin Wilkins

    Native Prisoner (uncredited)

17. Ed Allen

    Native Drug Seller (uncredited)

Crew 7