Donald Murphy
Oliver Frank(enstein)
Acting
Sandra Knight
Trudy Morton
Acting
John Ashley
Johnny Bruder
Acting
Felix Locher
Prof. Carter Morton
Acting
Wolfe Barzell
Elsu
Acting
Harry Wilson
The Monster
Acting
Sally Todd
Suzie Lawler
Acting
Harold Lloyd Jr.
Don
Acting
John Zaremba
Police Lt. Boyle
Acting
Robert Dix
Police Det. Bill Dillon
Acting
Charlotte Portney
Hysterical Woman
Acting
Voltaire Perkins
Mr. Rockwell
Acting
Bill Coontz
Loading Dock Foreman
Acting
George Barrows
Loading Dock Worker Mack
Acting