Scotland Yard Investigator › Cast
C. Aubrey Smith
Sir James Collison
Erich von Stroheim
Carl Hoffmeyer
Stephanie Bachelor
Toni Collison
Forrester Harvey
Sam Todworthy
Doris Lloyd
Emma Todworthy
Eva Moore
Mary Collison
Richard Fraser (actor)
Inspector Bob Cartwright
Victor Varconi
Jules
Georges Metaxa
Henri
Frederick Worlock
Commissioner John Brent, Col. Brent
Emil Rameau
Prof. Renault
Colin Campbell
Waters
Harry Allen (actor)
Watchman
Bunny Beatty
Girl in Richmond Park