Cast
Holmes Herbert
Frederick Holcomb
Robert Middlemass
Carmichael
Cedric Hardwicke
Dr. David Livingstone
Russell Hicks
Commissioner
Frank Orth
Newspaperman with Pills
C. Montague Shaw
Sir Oliver French
Brandon Hurst
Sir Henry Forrester
Walter Brennan
Jeff Slocum
Miles Mander
Sir John Gresham
Joseph Crehan
Morehead
Harry Harvey
Newspaperman at Water Barrel
Bobby Burns
Geographical Society Delegate
William R. Dunn
Chuma
Spencer Tracy
Henry M. Stanley
Richard Greene
Gareth Tyce
Henry Hull
James Gordon Bennett, Jr.
Henry Travers
John Kingsley
David Torrence
Mr. Cranston
Frank Dae
Commissioner
Harry Strang
Captain
Nancy Kelly
Eve Kingsley
Paul Harvey
Colonel Grimes
Everett Brown
Bongo
Vernon Dent
Newspaperman in Office
Frank Jaquet
Senator
Darby Jones
Chewing Native
Charles Coburn
Lord Tyce
Anthony Marsh
Messenger
Emmett Vogan
Albert