Actor (111 credits)
- Quest (1984)
- Smorgasbord (1983) Surgeon
- Slapstick (Of Another Kind) (1982) Dr. Frankenstein
- Outside Chance (1978) Coroner
- Holmes and Yo-Yo (1976) Montecito
- Sherlock Holmes in New York (1976) Heller
- The Black Bird (1975) DuQuai
- The Cat Creature (1973) Dr. Reinhart
- Cool Million (1972)
- O'Hara, U.S. Treasury (1971) Stephen Ravazian
- 2000 Years Later (1969) Gregorius
- Land of the Giants (1968) Prof. Gorak
- Three Guns for Texas (1968) Banker Irwing
- Garrison's Gorillas (1967) The Abbot
- The Jungle Book (1967) Wolf
- Iron Horse (1966) Judge Gilbert Burris
- Gambit (1966) Emile Fournier
- Star Trek (1966) Ayelborne
- The Greatest Story Ever Told (1965) Aben
- Lost in Space (1965) Sesmar
- Laredo (1965) Mr. Irwing
- The Munsters (1964) Dr. Frankenstein IV
- My Living Doll (1964) Felix
- Flipper (1964) Professor Marvello
- The Rogues (1964) Sir Egbert
- Destry (1964) Jake Weatherby
- Wendy and Me (1964) Shah of Bakhar
- The Farmer's Daughter (1963)
- Who's Minding the Store? (1963)
- I'm Dickens, He's Fenster (1962) Prime Minister
- The Dick Powell Show (1961) Colonel Campos
- Hong Kong (1960) Alec Borg
- Hot Off the Wire (1960)
- Play of the Week (1959) Dr. Bonfant
- The DuPont Show with June Allyson (1959) Professor Brent
- The Many Loves of Dobie Gillis (1959) Professor Dobkin
- The Ann Sothern Show (1958) Carter
- Gigi (1958) Manuel
- The Further Adventures of Ellery Queen (1958)
- Shirley Temple's Storybook (1958) Uncle Venner
- Omar Khayyam (1957) Yusuf, not listed in credits
- Goodyear Theatre (1957) Stefan
- Public Pigeon No. One (1957) Dipso Dave Rutherford
- Matinee Theatre (1955) Jasper Purdy
- The 20th Century-Fox Hour (1955) Dr. Albert Sawyer
- Science Fiction Theatre (1955) John Bowers
- Jane Wyman Presents The Fireside Theatre (1955) Barrett
- Rogue's March (1953) Herbert Bielensen
- The Steel Lady (1953) Mustafa el Melik
- Sombrero (1953) Don Daniel
- General Electric Theater (1953) Ballet Director
- The Merry Widow (1952) Marshovian Ambassador
- Thunder in the East (1952) Nitra Puta
- Crosswinds (1951) Algernon «Mousey» Sykes
- Thunder on the Hill (1951) Abel Harmer
- Navy Bound (1951) Pappa Cerrano
- Sideshow (1950) Pierre
- Madame Bovary (1949) Mayor Tuvache
- Addio Mimí! (1949) Orchestra conductor
- The Woman in White (1948) Frederick Fairlie
- Dream Girl (1948)
- The Web (1947) Charles Murdock
- Adventure Island (1947) Huish
- If Winter Comes (1947) Mr. Twyning
- Time Out of Mind (1947) Max Lieberman
- Anna and the King of Siam (1946) Phya Phrom, not listed in credits
- One More Tomorrow (1946) Joseph Baronova
- Deception (1946) Bertram Gribble
- Humoresque (1946) Rozner
- The Notorious Lone Wolf (1946) Lal Bara
- Pursuit to Algiers (1945) Jodri
- A Thousand and One Nights (1945) Ali
- The Power of the Whistler (1945) Kasper Andropolos, Bookshop Owner
- The Vampire's Ghost (1945)
- The Bandit of Sherwood Forest (1945)
- Honeymoon Ahead (1945) Welles
- Saratoga Trunk (1945) Roscoe Bean
- The Crime Doctor's Warning (1945) Jimmy Gordon
- Secrets of Scotland Yard (1944) Mortimer Cope
- U-Boat Prisoner (1944) Alfonse Lamont
- The Mask of Dimitrios (1944) Mr. Pappas
- Once Upon a Time (1944) Reporter, not listed in credits
- Cry of the Werewolf (1944) Peter Althius
- Summer Storm (1944) Lunin -Public Prosecutor
- Abroad with Two Yanks (1944) Salesman
- The Falcon in Hollywood (1944) Martin S. Dwyer
- Jane Eyre (1943) Mason, not listed in credits
- Hangmen Also Die! (1943) Hostage (scenes deleted)
- The Cross of Lorraine (1943) Baker, not listed in credits
- The Gorilla Man (1943) Dr. Ferris
- They Got Me Covered (1943) Gregory Vanescu
- Mission to Moscow (1943) Grinko, not listed in credits
- Dangerous Blondes (1943) Roland X. Smith, not listed in credits
- London Blackout Murders (1943) Jack Rawlings
- Nightmare (1942) Karl aka Charles
- Mrs. Miniver (1942) Fred
- This Above All (1942) Joe, not listed in credits
- Joan of Paris (1942) English Spy
- Rubber Racketeers (1942) Dumbo
- Get Hep to Love (1942) Prof. Radowsky
- The Shanghai Gesture (1941) Poppy's Escort, not listed in credits
- Ten Days in Paris (1940) André
- The Tempest (1939) Prospero
- The Great Commandment (1939) Starving Begger, not listed in credits
- The Saint in London (1939) Count Stephen Duni
- This Man Is News (1938) Hood with Foreign Accent, not listed in credits
- Return of the Scarlet Pimpernel (1937) Flower Seller, not listed in credits
- The Importance of Being Earnest (1937) John Worthing
- Mademoiselle Docteur (1937) Armand, not listed in credits
- Under Secret Orders (1937) Armand
- The Conquest of the Air (1936) Jean-François Pilâtre de Rozier
