| Plan 9 from Outer Space (1957) (AKA "Grave Robbers from Outer Space")As Ghoul Man | (Not seen) |
| Bride of the Monster (1955)As Dr. Eric Vornoff | (Not seen) |
| Glen or Glenda (1953) (AKA "Male or Female")As Scientist | (Not seen) |
| Vampire Over London (1952) (AKA "Mother Riley Meets the Vampire")As Von Housen | (Not seen) |
| Bela Lugosi Meets a Brooklyn Gorilla (1952) (AKA "The Boys from Brooklyn")As Dr. Zabor | (Not seen) |
| Abbott and Costello Meet Frankenstein (1948) (AKA "Bud Abbott and Lou Costello Meet Frankenstein")As Count Dracula | (Not seen) |
| Scared to Death (1946)As Prof Leonide | (Not seen) |
| The Body Snatcher (1945) (AKA "Robert Louis Stevenson's 'The Body Snatcher'")As Joseph | (Not seen) |
| Return of the Ape Man (1944)As Prof. Dexter | (Not seen) |
| The Ape Man (1943)As Dr. James Brewster | (Not seen) |
| The Return of the Vampire (1943)As Armand Tesla | (Not seen) |
| Frankenstein Meets the Wolf Man (1943) (AKA "Frankenstein Meets the Wolfman")As The Frankenstein Monster | (Not seen) |
| The Corpse Vanishes (1942)As Dr. Lorenz | (Not seen) |
| Bowery at Midnight (1942)As Prof. Frederick Brenner | (Not seen) |
| Black Dragons (1942)As Dr. Melcher/ Monsieur Colomb | (Not seen) |
| The Ghost of Frankenstein (1942)As Ygor | (Not seen) |
| Spooks Run Wild (1941)As Nardo | (Not seen) |
| Invisible Ghost (1941)As Dr. Charles Kessler | (Not seen) |
| The Wolf Man (1941)As Bela | (Not seen) |
| The Devil Bat (1940) (AKA "Killer Bats")As Dr. Paul Carruthers | (Not seen) |
| The Phantom Creeps (1939)As Dr. Alex Zorka / Dr. Zane | (Not seen) |
| The Human Monster (1939) (AKA "The Dark Eyes of London")As Dr. Feodor Orloff / Prof. John Dearborn | (Not seen) |
| Ninotchka (1939)As Commissar Razinin | (Not seen) |
| Son of Frankenstein (1939)As Ygor | (Not seen) |
| The Raven (1935)As Dr. Richard Vollin | (Not seen) |
| Murder by Television (1935)As Arthur Perry | (Not seen) |
| Mark of the Vampire (1935)As Count Mora | (Not seen) |
| The Invisible Ray (1935)As Dr. Felix Benet | (Not seen) |
| The Black Cat (1934) (AKA "The Vanishing Body")As Dr. Vitus Werdegast | (Not seen) |
| International House (1933)As General Petronovich | (Not seen) |
| White Zombie (1932)As Legendre | (Not seen) |
| Murders in the Rue Morgue (1932)As Dr. Mirakle | (Not seen) |
| Island of Lost Souls (1932) (AKA "The Island of Dr. Moreau")As Sayer | (Not seen) |
| Drácula (1931) (AKA "Dracula, Spanish Version")As Count Dracula (archive footage) (uncredited) | (Not seen) |
| Dracula (1931)As Count Dracula | (Not seen) |