Currently available on 1 streaming service.

I, Monster - watch online: streaming, buy or rent

Currently you are able to watch "I, Monster" streaming on Netflix.

Cast

Christopher Lee
Dr. Charles Marlowe / Mr. Edward Blake
Peter Cushing
Frederick Utterson
Mike Raven
Enfield
Richard Hurndall
Lanyon
George Merritt
Poole
Kenneth J. Warren
Deane
Susan Jameson
Diane
Marjie Lawrence
Annie
Aimée Delamain
Landlady
Michael Des Barres
Boy in alley
Ian McCulloch
Man at Bar (uncredited)
Chloe Franks
Girl in Alley (uncredited)