Actors
WO
Warner Oland
Charlie Chan
RL
Rosina Lawrence
Alice Lowell
CQ
Charles Quigley
Dick Williams
HC
Henrietta Crosman
Mrs. Henrietta Lowell
ET
Edward Trevor
Fred Gage
AA
Astrid Allwyn
Janice Lowell Gage
HM
Herbert Mundin
Baxter
EB
Egon Brecher
Ulrich
GR
Gloria Roy
Madame Carlotta Bowen
IM
Ivan Miller
Morton of Homicide
AC
Arthur Edmund Carewe
Professor Bowen
JH
Jonathan Hale
Warren T. Phelps