Basil Rathbone

Sherlock Holmes

Nigel Bruce

Dr. John H. Watson

Alan Mowbray

Major Duncan-Bleek

Dennis Hoey

Inspector Lestrade

Renee Godfrey

Ms Vedder

Frederick Worlock

Prof. William Kilbane

Mary Forbes

Lady Margaret Carstairs

Skelton Knaggs

Moran's Accomplice-killer

Billy Bevan

Passenger Car Attendant Taking Tickets

Geoffrey Steele

Roland - Lady Carstairs's son

Gilbert Allen

Dining Car Steward

Boyd Davis

Inspector MacDonald

Janet Murdoch

Mrs. Shallcross