| Tavish in The Courage of Marge O'Doone |
| Priest of Kama-Sita in The Hope Diamond Mystery |
| The Nabob in The Infidel |
| Maharajah Jehan in The Man from Downing Street |
| Undetermined Role in Nan of the North |
| Raoul Maris in The Woman Conquers |
| Tony Garcia in Dynamite Dan |
| The Outlaw in The Hellion |
| Pietro Castillano in Forbidden Cargo |
| Cabraza in Lady Robinhood |
| Pierre in Parisian Nights |
| Gaspard in Flaming Fury |
| Dave Sinclair in The Golden Web |
| Al Meggs in The Meddlin' Stranger |
| Ramon in The Phantom Buster |
| The Villain in The Vanishing Rider |
| Grouchy in Vultures of the Sea |
| Pug Doran in Burning the Wind |
| Boris in The Devil's Chaplain |
| Mullins in The Fatal Warning |
| Scarface Macklin in The King of the Kongo |
| Jules Gregg in The Phantom of the North |
| Galloway in The Criminal Code |
| The Monster in Frankenstein |
| 'Terry' in Graft |
| Tony Ricca in The Guilty Generation |
| Mustapha in King of the Wild |
| Cokey Joe in Young Donovan's Kid |
| Jim Henderson in Behind the Mask |
| Dr. Fu Manchu in The Mask of Fu Manchu |
| Imhotep in The Mummy |
| 'Happy' MacDonald in Night World |
| Morgan in The Old Dark House |
| Prof. Henry Morlant in The Ghoul |
| Hjalmar Poelzig in The Black Cat |
| Count Ledrantz in The House of Rothschild |
| Sanders in The Lost Patrol |
| Baron Gregor de Berghman in The Black Room |
| The Monster in The Bride of Frankenstein |
| Edmond Bateman in The Raven |
| Gravelle in Charlie Chan at the Opera |
| Dr. Janos Rukh in The Invisible Ray |
| Doctor Victor Sartorius in Juggernaut |
| Dr. Laurience in The Man Who Lived Again |
| John Ellman in The Walking Dead |
| David Mallory in Night Key |
| Wu Yen Fang in West of Shanghai |
| Jevries in The Invisible Menace |
| James Lee Wong in Mr. Wong, Detective |
| Dr. Henryk Savaard in The Man They Could Not Hang |
| James Lee Wong in Mr. Wong in Chinatown |
| Mr. James Lee Wong in The Mystery of Mr. Wong |
| The Monster in Son of Frankenstein |
| Mord in Tower of London |
| Dr. Bernard Adrian in The Ape |
| Dr. John Garth in Before I Hang |
| Dr. Ernest Sovac in Black Friday |
| Valdar in British Intelligence |
| Dr. Charles Gaudet in Devil's Island |
| James Lee Wong in Doomed to Die |
| James Lee Wong in The Fatal Hour |
| Dr. Leon Kravaal in The Man with Nine Lives |
| Judge Spencer Mainwaring in You'll Find Out |
| Dr. Julian Blair in The Devil Commands |
| Prof. Nathaniel Billings in The Boogie Man Will Get You |
| Dr. Friedrich Hohner in The Climax |
| Doctor Gustav Niemann in House of Frankenstein |
| Cabman John Gray in The Body Snatcher |
| Gen. Nikolas Pherides in Isle of the Dead |
| Master George Sims in Bedlam |
| Gruesome in Dick Tracy Meets Gruesome |
| Charles van Druten in Lured |
| Dr. Hugo Hollingshead in The Secret Life of Walter Mitty |
| Guyasuta - Chief of the Senecas in Unconquered |
| Tishomingo in Tap Roots |
| Swami Talpur in Bud Abbott Lou Costello Meet the Killer Boris Karloff |
| Narrator (English version) in The Emperor's Nightingale |
| Voltan in The Strange Door |
| Dr. Meissen in The Black Castle |
| Colonel March in Colonel March Investigates |
| Dr. Henry Jekyll in Abbott and Costello Meet Dr. Jekyll and Mr. Hyde |
| Don Gaetano in The Island Monster |
| Gen. Pollegar in Sabaka |
| Phillip Knight in Voodoo Island |
| Dr. Bolton in Corridors of Blood |
| Baron Victor von Frankenstein in Frankenstein 1970 |
| James Rankin in The Haunted Strangler |
| Amos Hinchley in The Comedy of Terrors |
| Dr. Scarabus in The Raven |
| Baron Victor Frederick Von Leppe in The Terror |
| Gorca (segment "I Wurdalak") in Black Sabbath |
| Nahum Witley in Die, Monster, Die! |
| Franz Badulescu in Cauldron of Blood |
| Baron Boris von Frankenstein in Mad Monster Party? |
| Prof. Marcus Monserrat in The Sorcerers |
| Professor John Marsh in The Crimson Cult |
| Dr. Karl Mantell in Fear Chamber |
| Matthias Morteval in House of Evil |
| Prof. John Mayer in Alien Terror |
| Karl Van Molder in Isle of the Snake People |
| Byron Orlok in Targets |
| Dakar in The Hope Diamond Mystery |
| Anton de Berghman in The Black Room |
| Dick Haslewood in The Man Who Lived Again |
| Mr. Hyde in Abbott and Costello Meet Dr. Jekyll and Mr. Hyde |
| Eric in The Terror |
| Damballah in Isle of the Snake People |