| Courtenay Urquhart in Eve's Daughter |
| Undetermined Role in For Sale |
| Kenneth Gordon in The Marriage Price |
| Howard Hollister in The Eternal Mother |
| Lester in The Highest Bidder |
| Zurof in The Sun Never Sets |
| Dr. Jerry Xavier in Doctor X |
| Sir Austin Howard in The Silent Witness |
| Eric Gorman in Murders in the Zoo |
| Ivan Igor in Mystery of the Wax Museum |
| Aubrey St. John in The Secret of Madame Blanche |
| Robert von Helldorf in Secret of the Blue Room |
| Inspector Wallace in The Solitaire Man |
| Baron von Merzbach in The Song of Songs |
| Jerome Breen in The Sphinx |
| Dr. Otto von Niemann in The Vampire Bat |
| Julius Beaufort in The Age of Innocence |
| John 'Flint' Dawson aka John Daniels in Beggars in Ermine |
| John Pointer in The Firebird |
| Henry Dumont in The Man Who Reclaimed His Head |
| Colonel André Muffat in Nana |
| Herr Von Sturm in Stamboul Quest |
| Colonel Bishop in Captain Blood |
| Capt. Don Pasqual 'Pasqualito' Costelar in The Devil Is a Woman |
| Inspector Neumann in Mark of the Vampire |
| Captain Cole in The Murder Man |
| Major William Brennan in Rendezvous |
| G.A. Axton in Absolute Quiet |
| Maj. Gen. Sir John Sangye, VC in The High Command |
| Mr. Whittaker in Lady of Secrets |
| Ludwig in Till We Meet Again |
| Mike Roberts in The Wrong Road |
| James Mortimer M.D. in The Hound of the Baskervilles |
| Professor Hildebrand in Mr. Moto Takes a Vacation |
| Paul Messenger in The Secret of Dr. Kildare |
| Inspector Krogh in Son of Frankenstein |
| Cliveden Compton in Charlie Chan in Panama |
| Dr. Suderman in Charlie Chan's Murder Cruise |
| Russell aka Henry Woodruff in Girl in 313 |
| General Bazaine in The Mad Empress |
| Dr. Paul Rigas in Man Made Monster |
| Doctor Theodore Bohmer in The Ghost of Frankenstein |
| The Baron in Junior G-Men of the Air |
| Graham in The Mad Doctor of Market Street |
| Dr. King in Night Monster |
| Moriarty (as Moriarity) in Sherlock Holmes and the Secret Weapon |
| Dr. Fish in The Strange Case of Doctor Rx |
| Mayor in Frankenstein Meets the Wolf Man |
| Cyrus Maldor in Captain America |
| Charles Finch in Lady in the Death House |
| Erich von Rugen - alias Alex Morel in Raiders of Ghost City |
| Waterlow in Secrets of Scotland Yard |
| Pat Coyle in Crime, Inc. |
| Alec Ritchfield in Fog Island |
| Latimer Marsh in Genius at Work |
| Sir Eric Hazarias in Lost City of the Jungle |
| Dr. Ralph Benson in The Mad Doctor of Market Street |
| The Cobra in Genius at Work |