Top Cast
H.B. Warner
Prof. Dangerfield
Louise Fazenda
Mrs. Fleming
Jacqueline Logan
Irene
Henry B. Walthall
Capt. Rhodes - Yacht Commander
Claude Gillingwater
James Rutherford - Expedition Leader
John Miljan
Dr. Milo
George Beranger
Simpson - Guide
Warner Richmond
First Mate
Floyd Shackelford
Sam - Cook
Lionel Belmore
Amos Sewald
Charles Gemora
Gorilla (uncredited)