Director: Roy William Neill
Holmes and Watson board a passenger train bound from London to Edinburgh, to guard the Star of Rhodesia, an enormous diamond worth a fortune belonging to an elderly woman of wealth; but within the first hour of the trip, the woman's son is murdered and the diamond stolen and any of the passengers in their car could be the killer thief.
Basil Rathbone
Sherlock Holmes
Nigel Bruce
Dr. John H. Watson
Alan Mowbray
Major Duncan-Bleek
Dennis Hoey
Inspector Lestrade
Renee Godfrey
Vivian Vedder
Frederick Worlock
Prof. William Kilbane
Mary Forbes
Lady Margaret Carstairs
Skelton Knaggs
Sands - Moran's Accomplice
Billy Bevan
Conductor Taking Tickets
Geoffrey Steele
Roland Carstairs
Janet Murdoch
Mrs. Shallcross (uncredited)
Gerald Hamer
Alf Shallcross (uncredited)
Leyland Hodgson
Senior Conductor (uncredited)
Harry Cording
Mock the Undertaker (uncredited)
Charles Knight
Baggage Car Guard (uncredited)
Boyd Davis
"Inspector MacDonald" (uncredited)
Bobby Wissler
Mock Jr. (uncredited)
Gilbert Allen
Dining Car Steward (uncredited)
C. Aubrey Smith
Elderly gentleman on train station (uncredited)
Basil Rathbone
Sherlock Holmes
Nigel Bruce
Dr. John H. Watson
Alan Mowbray
Major Duncan-Bleek
Dennis Hoey
Inspector Lestrade
Renee Godfrey
Vivian Vedder
Frederick Worlock
Prof. William Kilbane
Mary Forbes
Lady Margaret Carstairs
Skelton Knaggs
Sands - Moran's Accomplice
Billy Bevan
Conductor Taking Tickets
Geoffrey Steele
Roland Carstairs
Janet Murdoch
Mrs. Shallcross (uncredited)
Gerald Hamer
Alf Shallcross (uncredited)
Leyland Hodgson
Senior Conductor (uncredited)
Harry Cording
Mock the Undertaker (uncredited)
Charles Knight
Baggage Car Guard (uncredited)
Boyd Davis
"Inspector MacDonald" (uncredited)
Bobby Wissler
Mock Jr. (uncredited)
Gilbert Allen
Dining Car Steward (uncredited)
C. Aubrey Smith
Elderly gentleman on train station (uncredited)
Basil Rathbone
Sherlock Holmes
Nigel Bruce
Dr. John H. Watson
Alan Mowbray
Major Duncan-Bleek
Dennis Hoey
Inspector Lestrade
Renee Godfrey
Vivian Vedder
Frederick Worlock
Prof. William Kilbane
Mary Forbes
Lady Margaret Carstairs
Skelton Knaggs
Sands - Moran's Accomplice
Billy Bevan
Conductor Taking Tickets
Geoffrey Steele
Roland Carstairs
Janet Murdoch
Mrs. Shallcross (uncredited)
Gerald Hamer
Alf Shallcross (uncredited)
Leyland Hodgson
Senior Conductor (uncredited)
Harry Cording
Mock the Undertaker (uncredited)
Charles Knight
Baggage Car Guard (uncredited)
Boyd Davis
"Inspector MacDonald" (uncredited)
Bobby Wissler
Mock Jr. (uncredited)
Gilbert Allen
Dining Car Steward (uncredited)
C. Aubrey Smith
Elderly gentleman on train station (uncredited)