Lon Chaney
Professor Echo / Granny O'Grady
Acting
Mae Busch
Rosie O'Grady
Acting
Matt Moore
Hector McDonald
Acting
Victor McLaglen
Hercules
Acting
Harry Earles
Tweedledee aka Little Willie
Acting
Matthew Betz
Detective Regan
Acting
Edward Connelly
Judge
Acting
William Humphrey
Attorney for Defense
Acting
E. Alyn Warren
Prosecuting Attorney
Acting
Margie Angus
Twin (uncredited)
Acting
Mary Angus
Twin (uncredited)
Acting
Walter P. Cole
Human Skeleton (uncredited)
Acting
Carrie Daumery
Pet Shop Customer (uncredited)
Acting
Delmo Fritz
Sword Swallower (uncredited)
Acting
Alice Julian
Fat Lady (uncredited)
Acting
Peter Kortes
Sword Swallower (uncredited)
Acting
Mickey McBan
Boy Watching Hercules' Act (uncredited)
Acting
Wilmuth Merkyl
Jeweler (uncredited)
Acting
John Millerta
Wild Borneo Man (uncredited)
Acting
Louis Morrison
Police Commissioner (uncredited)
Acting
Majorie Morton
Mrs. Arlington (uncredited)
Acting
Walter Perry
Dime Museum Announcer (uncredited)
Acting
Louis Shank
Newsboy (uncredited)
Acting
Vera Vance
Dancer (uncredited)
Acting
Charles Wellesley
John Arlington (uncredited)
Acting
Percy Williams
Butler (uncredited)
Acting