Robert Fleming
Sandra Carpenter
Harley Temple
Charles van Druten
Julian Wilde
Nicholas Moryani
Lyle Maxwell
H.R. Barrett
Detective Wilson
Detective Gordon
Lucy Barnard
Matilda
Nelson (uncredited)
Pierre (uncredited)
Sir Charles (uncredited)
Professor Harkness (uncredited)
Harry Milton (uncredited)
Oswald Pickering (uncredited)
Mrs. Miller (uncredited)
Charles (uncredited)
Fleming's Butler (uncredited)
Old Man at Concert Asking for Whiskey (uncredited)
Dowager Shushing Fleming at Concert (uncredited)
Robert's Rejected Girlfriend (uncredited)
