"A trio of former sideshow performers double as the "Unholy Three" in a scam to nab some shiny rocks."
Lon Chaney
as Professor Echo / Grandma O'Grady
Lila Lee
as Rosie O'Grady
Elliott Nugent
as Hector McDonald
Harry Earles
as Tweedledee aka Willie 'Midget'
John Miljan
as Prosecuting Attorney
Ivan Linow
as Hercules
Clarence Burton
as Regan
Crauford Kent
as Defense Attorney
Trixie Friganza
as Lady Customer (uncredited)
Cecilia Parker
as First Siamese Twin (uncredited)
Linda Parker
as Second Siamese Twin (uncredited)
Ray Cooke
as Sailor at Sideshow (uncredited)
Jack Baxley
as Outside Sideshow Barker (uncredited)
Jack Conway
Director
Irving Thalberg
Producer
J. C. Nugent
Writer
Makeup Artist
George Hurrell Sr.
Still Photographer
