Drummond's wedding with Phyllis is interrupted when the inspector guarding their gifts is killed. He tries to trace the killers and uncovers the mystery of diamond counterfeiters.
Colonel Neilson
Captain Hugh 'Bulldog' Drummond
Phyllis Clavering
Algy Longworth
Tenny
Dr. Botulian
Aunt Blanche
Gwen Longworth
Prof. Bernard Goodman
Sir Raymond Blantyre
Mrs. Weevens
Constable McThane
Constable Sacker
Roberts
Anthony Greer
Paulette
Raoul
Mechanic
Constable Announcer
Villager
Botulian's Driver
Bus Garage Man
Footman
Hoffman
Train Official
Radio Dispatcher
Doctor
Spinster
Spinster
Messenger
Messenger
Sergeant
Constable
Constable
Constable
First Expressman
Second Expressman
