All Cast
Lon Chaney
Professor Echo / Grandma O'Grady
Lila Lee
Rosie O'Grady
Elliott Nugent
Hector McDonald
Harry Earles
Tweedledee aka Willie 'Midget'
John Miljan
Prosecuting Attorney
Ivan Linow
Hercules
Clarence Burton
Regan
Crauford Kent
Defense Attorney
Trixie Friganza
Lady Customer (uncredited)
Cecilia Parker
First Siamese Twin (uncredited)
Linda Parker
Second Siamese Twin (uncredited)
Ray Cooke
Sailor at Sideshow (uncredited)