Frank Buck

Frank Hardy

Sasha Siemel

Tiger Van Dorn

Reginald Denny

Ralph Marshall

Esther Ralston

Valerie Shields

Charlotte Henry

Dorothy Elliott

William Bakewell

Tom Banning

Clarence Muse

Lightning

Willie Fung

Chiang-Houseboy

LeRoy Mason

Jim Murphy

Matthew Betz

Inspector Starrett

Richard Tucker

Robert Banning

Duncan Renaldo

Armand Roget

Fred Kohler Jr.

John Charles

Sherwood Bailey

Paul Marshall

Harry 'Snub' Pollard

Campbell

Harry L. Fraser

George Melford