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)