Cast
Arthur Edmund Carewe
Professor Bowen
Jonathan Hale
Warren T. Phelps
Ivan Miller
Morton of Homicide
Francis Ford
Captain of salvage ship
Landers Stevens
Coroner
Warner Oland
Charlie Chan
Astrid Allwyn
Janice Lowell Gage
Herbert Mundin
Baxter
Egon Brecher
Ulrich
William Bailey
Det. Harris
Henrietta Crosman
Mrs. Henrietta Lowell
Jerry Miley
Allen Colby
Bud Geary
Policeman
Chuck Hamilton
Policeman
Rosina Lawrence
Alice Lowell
Charles Quigley
Dick Williams
Edward Trevor
Fred Gage