Characters played by Lionel Atwill
Ivan Igor
Characters played by Fay Wray
Charlotte Duncan
Characters played by Glenda Farrell
Florence
Characters played by Frank McHugh
Jim
Characters played by Allen Vincent
Ralph Burton
Characters played by Gavin Gordon
George Winton
Characters played by Edwin Maxwell
Joe Worth
Characters played by Holmes Herbert
Dr. Rasmussen
Characters played by Claude King
Mr. Galatalin
Characters played by Arthur Edmund Carewe
Prof. Darcy
Characters played by Thomas E. Jackson
Detective
Characters played by DeWitt Jennings
Police Captain
Characters played by Matthew Betz
Hugo
Characters played by Monica Bannister
Joan Gale
Characters played by Bull Anderson
Janitor
Characters played by Frank Austin
Winton's Valet
Characters played by Max Barwyn
Museum Visitor
Characters played by Wade Boteler
Ambrose
Characters played by Harry C. Bradley
Reporter
Characters played by Wallis Clark
Autopsy Surgeon's Assistant
Characters played by Frank Darien
Autopsy Surgeon
Characters played by William B. Davidson
Detective
Characters played by James Donlan
Morgue Attendant
Characters played by Frank Fanning
Policeman
Characters played by Otto Hoffman
Igor's Assistant
Characters played by Robert Homans
Desk Sergeant
Characters played by Perry Ivins
Copy Editor
Characters played by Milton Kibbee
Reporter
Characters played by Margaret Mann
Wax Figure of Queen Victoria
Characters played by Charles McMurphy
Policeman in Prison
Characters played by Robert Emmett O'Connor
Joe
Characters played by Pat O'Malley
Plainclothesman
Characters played by Walter Percival
Winton's Attorney
Characters played by Lon Poff
Tall Thin Henchman
Characters played by Dick Rush
Policeman
Characters played by Lee Shumway
Policeman
Characters played by Guy Usher
Detective
Characters played by William Wagner
Morgue Attendant's Assistant