Self - Narrated by
Superintendent Duggan
Sergeant Adams
Dr. Stanton
Smaller
Mrs. Effie Smaller
Pearce (as William Lyon-Brown)
Lemaitre
Sgt. Betty Barnes
Mr. Fowler
Parriss
Botanist
Brown
Colette
Uniformed Inspector
Woman in Hotel
Police Constable (uncredited)
French Detective (uncredited)
Gendarme (uncredited)
Detective (uncredited)
Forensic Scientist (uncredited)