| Directed by |
H. Bruce Humberstone |
|
| Screenplay by |
Scott Darling |
|
| Story by |
Bess Meredyth |
|
| Cast: | ||
| Charlie Chan | Warner Oland | |
| Gravelle | Boris Karloff | |
| Lee Chan | Keye Luke | |
| Sgt. Kelly | William Demarest | |
| Mme. Lilli Rochelle | Margaret Irving | |
| Enrico Barelli | Gregory Gaye | |
| Mr. Whitely | Frank Conroy | |
| Phil Childers | Thomas Beck | |
| Mr. Arnold | Maurice Cass | |
| Detective | William Bailey | |
| Villager in Opera | Myrta Bonillas | |
| Detective | Jim Farley | |
| Opera Supernumerary | Benson Fong | |
| Innkeeper | Otto Fries | |
| Detective | Harrison Greene | |
| Hudson - Wire-Photo Technician | Selmer Jackson | |
| Dugan - Policeman | Fred Kelsey | |
| Undetermined Minor Role (unconfirmed) | Marc Lawrence | |
| Cop | Harry Strang | |
| Smitty - Wire-Photo Technician | Emmett Vogan | |
| Dancer in Opera | Joan Woodbury | |
| Hospital Attendant | Karl Malden | |
| Mary Wickes | ||
| Director of photography |
Lucien N. Andriot |
|
| Executive Producer |
Sol M. Wurtzel |
|
| Year: | 1936 | |
| Running time: | 68 minutes | |
| Country: | United States | |
| Language: | English | |