Francis Finch-Smiles (billed as "Finch Smiles") – Austin
Jules Cowes (in blackface) – Zambo
Margerette McWade – Mrs. Challenger
George Bunny – Colin McArdle
Charles Wellesly – Major Hibbard (uncredited)
Nelson MacDowell – Attorney (uncredited)
Chris-Pin Martin – Bearer/Cannibal (Scenes Deleted)
Jocko the Monkey – Himself
Mary the Chimpanzee – Herself (uncredited)