Cast
Alec Guinness
Father Brown
Joan Greenwood
Lady Warren
Cecil Parker
The Bishop
Ernest Clark
Bishop's Secretary
Dino Galvani
Italian Professor
Bernard Lee
Inspector Valentine
Ernest Thesiger
The Vicomte
Marne Maitland
Maharajah
Jim Gérald
French Stationmaster
John Salew
Station sergeant
John Horsley
Inspector Wilkins
Jack McNaughton
Railway Guard
Noel Howlett
Auctioneer
Eugene Deckers
French Cavalry Officer
Aubrey Woods
Charlie
Sam Kydd
Scotland Yard sergeant
Guido Lorraine
Café Patron
Peter Finch
Gustave Flambeau
Sidney James
Bert Parkinson
Everley Gregg
Governess
Austin Trevor
The Herald