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