Leo Gorcey

'Slip' Mahoney

Huntz Hall

'Sach' Jones

Patrick O'Moore

Alfie Grimshaw

Rudolph Anders

Dr. Goebbel

Bernard Gorcey

Louie Dumbrowsky

David Gorcey

Chuck

Benny Bartlett

Butch

Harry Cording

Henchman Shanks

Eric Snowden

Trader Holmes

Woody Strode

Malaka, head bearer

Laurette Luez

Anaka

Joel Fluellen

Rangori, witch doctor

Murray Alper

Max Lomax

Pat Flaherty

Police Officer Flaherty

Emory Parnell

Police Captain

John Harmon

Police Scientist

Roy Glenn

Chief Mutawa

Emil Sitka

Helpful Riverboat Crewman

Clint Walker

Tarzan