Cast
Lon Chaney
Professor Echo / Granny O'Grady
Mickey McBan
Boy Watching Hercules' Act (uncredited)
Wilmuth Merkyl
Jeweler (uncredited)
Mae Busch
Rosie O'Grady
Matt Moore
Hector McDonald
Victor McLaglen
Hercules
Matthew Betz
Detective Regan
Carrie Daumery
Pet Shop Customer (uncredited)
Edward Connelly
Judge
William Humphrey
Attorney for Defense
Harry Earles
Tweedledee aka Little Willie
E. Alyn Warren
Prosecuting Attorney
Louis Morrison
Police Commissioner (uncredited)