导演 Harry L. Fraser

Frank Hardy Frank Buck

Tiger Van Dorn Sasha Siemel

Ralph Marshall 雷金纳德·丹尼

Valerie Shields Esther Ralston

Dorothy Elliott Charlotte Henry

Tom Banning 威廉·贝克韦尔

Lightning Clarence Muse

Chiang-Houseboy Willie Fung

Jim Murphy LeRoy Mason

Inspector Starrett Matthew Betz

Robert Banning Richard Tucker

Armand Roget Duncan Renaldo

John Charles Fred Kohler Jr.

Paul Marshall Sherwood Bailey

Campbell Harry 'Snub' Pollard

Professor 乔治·罗森纳

Mrs. Maitland Gertrude Sutton

Chandler Elliott John St. Polis

Doctor Coleman John Davidson

Singapore Joe Milburn Morante

Joe Nolan Dirk Thane

Angus MacLeod Robert Warwick

Hardy's Assistant Dahlam Ali

Henchman Jim Corey

Greenway Paul Ellis

Jackson Henry Hale

Roget Clerk #1 Harry Harvey

Sailor Reed Howes

Undercover Detective at Dive Jack Ingram

Detective Interrogating Pete Tom London

Peters Merrill McCormick

Henchman Blackie Whiteford

Henchman Roger Williams