Lon Chaney

Character: Professor Echo / Grandma O'Grady

Lila Lee

Character: Rosie O'Grady

Elliott Nugent

Character: Hector McDonald

Harry Earles

Character: Tweedledee aka Willie 'Midget'

John Miljan

Character: Prosecuting Attorney

Ivan Linow

Character: Hercules

Clarence Burton

Character: Regan

Crauford Kent

Character: Defense Attorney

Trixie Friganza

Character: Lady Customer (uncredited)

Cecilia Parker

Character: First Siamese Twin (uncredited)

Linda Parker

Character: Second Siamese Twin (uncredited)

Ray Cooke

Character: Sailor at Sideshow (uncredited)

Jack Baxley

Character: Outside Sideshow Barker (uncredited)