Hedy Lamarr
Tondelayo
Acting
Walter Pidgeon
Mr. Harry Witzel
Acting
Frank Morgan
The Doctor
Acting
Richard Carlson
Mr. Langford
Acting
Reginald Owen
Skipper of the Congo Queen
Acting
Henry O'Neill
The Reverend Dr. Roberts
Acting
Bramwell Fletcher
Wilbur Ashley
Acting
Clyde Cook
Ted, First Mate of the Congo Queen
Acting
Leigh Whipper
Jim Fish
Acting
Oscar Polk
Umeela
Acting
Darby Jones
Darby
Acting
Richard Ainley
Mr. Worthing
Acting
Jim Davis
Seaplane Pilot (uncredited)
Acting
John Burton
Jim Benson (uncredited)
Acting
Delos Jewkes
Native Singer (uncredited)
Acting
Martin Wilkins
Native Prisoner (uncredited)
Acting
Ed Allen
Native Drug Seller (uncredited)
Acting