1979Meteor— Russian Premier
1978Keefer— Priest
1978The President's Mistress— Josef
1969The File on Devlin— The Soviet Ambassador
1967Dick Tracy - The Plot To Kill NATO— Markov
1966Batman— Soviet Delegate (uncredited)
1962Hitler— Field Marshal Erwin Rommel
1960Soyguncular— Freeman (Casino Owner) (uncredited)
1959Judgment at Nuremberg— Frederich Hoffstetter
1958Missile Monsters— Mota
1957Kelly and Me— Milo
1957Bailout at 43,000— Dr. Franz Gruener
1956The Eddy Duchin Story— Philip
1955Creature with the Atom Brain— Dr. Wilhelm Steigg
1955King of the Carnival— Zorn (as Gregory Gay)
1954Jungle Man-Eaters— Leroux
1954With This Ring
1954Charge of the Lancers— Cpl. Bonikoff
1953Flame of Calcutta— Amir Khasid
1953Savage Mutiny— Carl Kroman
1953Remains to Be Seen— Headwaiter (uncredited)
1953The Juggler— Harry (uncredited)
1953Commando Cody: Sky Marshal of the Universe— The Ruler
1952Bal Tabarin— Jean Dufar
1952The World in His Arms— Colonel Paul Shushaldin
1951Peking Express— Stanislaus
1951The Magic Carpet— Caliph Ali
1951The Whip Hand— Sweitart (uncredited)
1950Flying Disc Man from Mars— Mota
1950Harbor of Missing Men— Captain Koretsky (as Gregory Gay)
1949Black Magic— Chambord / Monk (as Gregory Gay)
1949Dancing in the Dark— Headwaiter
1947The Bachelor and the Bobby-Soxer— Maitre d'Hotel
1947Blackmail— Jervis (as Gregory Gay)
1947The Trespasser— Mr. E. Charles
1947The Corpse Came C.O.D.— Director
1946Passkey to Danger— Mr. Warren
1946So Dark the Night
1945Cornered— Perchon, German Banker
1945I Love a Mystery— Dr. Han (Uncredited)
1945The Tiger Woman— Joe Sapphire (as Gregory Gay)
1945Paris Underground— Tissier
1945A Song to Remember— Young Russian (uncredited)
1944Seven Doors to Death— Henry Butler aka Gregor (as Gregory Gay)
1944The Purple Heart
1944The Conspirators— Antone Wynat (uncredited)
1943One Dangerous Night— Dr. Eric Budenny (as Gregory Gay)
1942Fall In— Karl, Nazi Wiretapper
1942The Secret Code— Nazi Agent Feldon
1941I Wake Up Screaming— Headwaiter
1941They Dare Not Love— Von Mueller
1940Down Argentine Way— Sebastian
1939Gülmeyen Kadın— Count Alexis Rakonin
1939Paris Honeymoon— Count Georges De Remi
1939The Three Musketeers— Vitray
1939On Your Toes— Vassilly - Slave in Ballet
1939Hotel for Women— Fernando Manfredi
1938Love, Honor and Behave— Count Humbert
1938Too Hot to Handle— Popoff
1938Breakdowns of 1938— Prince Boris (archive footage) (uncredited)
1938Straight, Place and Show— Vladimir Borokov - Russian Jockey
1938Bulldog Drummond's Peril— Raoul
1937Tovarich— Count Frederic Brekenski
1937Lancer Spy— Capt. Freymann
1937Wise Girl— Prince Leopold
1937Mama Steps Out— Dmitri
1937Prescription for Romance— Dr. Paul Azarny
1937First Lady— Prince Boris Gregoravitch
1936Dodsworth— Baron Kurt Von Obersdorf
1936Charlie Chan at the Opera— Enrico Borelli
1936Hollywood Boulevard— Russian Writer (uncredited)
1936That Girl from Paris— Paul Joseph DeVry (uncredited)
1936Under Your Spell— Count Raul Du Rienne
1934British Agent— Mr. Kolinoff
1934Handy Andy— Pierre Martel
1931Kept Husbands— Mons. Prinz (uncredited)
1931Young as You Feel— Pierre
1930Renegades— Dmitri Vologuine
1930The Song of the Flame
1930High Society Blues— Count Prunier
1930What a Widow!— Baslikoff
1929They Had to See Paris— Prince Ordinsky (uncredited)
1929The Case of Lena Smith— (uncredited)
—Some Time Soon— Boris
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