Cast
- Sidney Toler as Charlie Chan
- Mantan Moreland as Birmingham Brown
- Frances Chan as Frances Chan
- Joseph Crehan as Police Sgt. Matthews
- Helen Beverley as Norma Duncan
- Helen Beverley as Nancy Wood
- Jacqueline deWit as Justine Bonner
- Geraldine Wall as Harriet Green
- Ralph Peters as Officer Rafferty
- Frank Jaquet as Paul Hamlin
- Edward Earle as Dawson, Police Lab
Crew
- Phil Rosen · Director
- Earl Derr Biggers · Writer
- George Callahan · Writer
- James S. Burkett · Producer
- Philip N. Krasne · Producer
- Alexander Laszlo · Composer
- Arthur Martinelli · Cinematographer
- John F. Link Sr. · Editor