| Ano | Nota | Título | Personagem |
|---|---|---|---|
| 1979 | Meteoro | Russian Premier | |
| 1978 | Keefer | Priest | |
| 1978 | The President's Mistress | Josef | |
| 1969 | Topázio | Meeting Co-Ordinator (uncredited) | |
| 1969 | The File on Devlin | The Soviet Ambassador | |
| 1967 | Dick Tracy - The Plot To Kill NATO | Markov | |
| 1966 | Batman: O Homem Morcego | Soviet Delegate (uncredited) | |
| 1962 | Cinzas Sem Glória | Field Marshal Erwin Rommel | |
| 1961 | Feitiço Havaiano | Paul Duval (uncredited) | |
| 1960 | Onze Homens e Um Segredo | Freeman (Casino Owner) (uncredited) | |
| 1959 | Judgment at Nuremberg | Frederich Hoffstetter | |
| 1958 | A Mulher do Século | Vladimir Klinkoff (uncredited) | |
| 1958 | Missile Monsters | Mota | |
| 1957 | Bailout at 43,000 | Dr. Franz Gruener | |
| 1957 | Kelly and Me | Milo | |
| 1956 | Melodia Imortal | Philip | |
| 1955 | O Cadáver Atômico | Dr. Wilhelm Steigg | |
| 1955 | King of the Carnival | Zorn (as Gregory Gay) | |
| 1954 | Jungle Man-Eaters | Leroux | |
| 1954 | A Carga dos Lanceiros | Cpl. Bonikoff | |
| 1954 | With This Ring | - | |
| 1953 | Flame of Calcutta | Amir Khasid | |
| 1953 | A Porta Secreta | Headwaiter (uncredited) | |
| 1953 | O Malabarista | Harry (uncredited) | |
| 1953 | Commando Cody: Sky Marshal of the Universe | The Ruler | |
| 1953 | Savage Mutiny | Carl Kroman | |
| 1952 | O Mundo em Seus Braços | Colonel Paul Shushaldin | |
| 1952 | Bal Tabarin | Jean Dufar | |
| 1951 | The Magic Carpet | Caliph Ali | |
| 1951 | Cruéis Dominadores | Sweitart (uncredited) | |
| 1951 | Peking Express | Stanislaus | |
| 1950 | Mistério do Disco Voador | Mota | |
| 1950 | Harbor of Missing Men | Captain Koretsky (as Gregory Gay) | |
| 1949 | Dancing in the Dark | Headwaiter | |
| 1949 | Memórias de um Médico | Chambord / Monk (as Gregory Gay) | |
| 1947 | Solteirão Cobiçado | Maitre d'Hotel | |
| 1947 | Blackmail | Jervis (as Gregory Gay) | |
| 1947 | The Trespasser | Mr. E. Charles | |
| 1947 | A Mortalha de Seda | Director | |
| 1946 | Satã Passeia à Noite | - | |
| 1946 | Passkey to Danger | Mr. Warren | |
| 1945 | Acossado | Perchon, German Banker | |
| 1945 | The Tiger Woman | Joe Sapphire (as Gregory Gay) | |
| 1945 | Paris-Subterrâneo | Tissier | |
| 1945 | I Love a Mystery | Dr. Han (Uncredited) | |
| 1945 | À Noite Sonhamos | Young Russian (uncredited) | |
| 1944 | Seven Doors to Death | Henry Butler aka Gregor (as Gregory Gay) | |
| 1944 | Mais Forte que a Vida | - | |
| 1943 | Uma Noite Perigosa | Dr. Eric Budenny (as Gregory Gay) | |
| 1943 | Casablanca | German Banker Refused by Rick (uncredited) | |
| 1942 | Fall In | Karl, Nazi Wiretapper | |
| 1942 | The Secret Code | Nazi Agent Feldon | |
| 1941 | Quem Matou Vicki? | Headwaiter | |
| 1941 | They Dare Not Love | Von Mueller | |
| 1940 | Serenata Tropical | Sebastian | |
| 1939 | Ninotchka | Count Alexis Rakonin | |
| 1939 | On Your Toes | Vassilly - Slave in Ballet | |
| 1939 | Hotel for Women | Fernando Manfredi | |
| 1939 | The Three Musketeers | Vitray | |
| 1939 | Paris Honeymoon | Count Georges De Remi | |
| 1938 | Breakdowns of 1938 | Prince Boris (archive footage) (uncredited) | |
| 1938 | Straight, Place and Show | Vladimir Borokov - Russian Jockey | |
| 1938 | Sob o Céu dos Trópicos | Popoff | |
| 1938 | Bulldog Drummond's Peril | Raoul | |
| 1938 | Love, Honor and Behave | Count Humbert | |
| 1937 | Wise Girl | Prince Leopold | |
| 1937 | Tovarich | Count Frederic Brekenski | |
| 1937 | Prescription for Romance | Dr. Paul Azarny | |
| 1937 | First Lady | Prince Boris Gregoravitch | |
| 1937 | Lancer Spy | Capt. Freymann | |
| 1937 | Mama Steps Out | Dmitri | |
| 1936 | That Girl from Paris | Paul Joseph DeVry (uncredited) | |
| 1936 | Charlie Chan na Ópera | Enrico Borelli | |
| 1936 | Under Your Spell | Count Raul Du Rienne | |
| 1936 | Fogo de Outono | Baron Kurt Von Obersdorf | |
| 1936 | Hollywood Boulevard | Russian Writer (uncredited) | |
| 1934 | Espionagem | Mr. Kolinoff | |
| 1934 | Handy Andy | Pierre Martel | |
| 1931 | Young as You Feel | Pierre | |
| 1931 | Maridos Apenas | Mons. Prinz (uncredited) | |
| 1930 | Renegades | Dmitri Vologuine | |
| 1930 | What a Widow! | Baslikoff | |
| 1930 | The Song of the Flame | - | |
| 1930 | High Society Blues | Count Prunier | |
| 1929 | They Had to See Paris | Prince Ordinsky (uncredited) | |
| 1929 | O Romance de Lena | (uncredited) | |
| - | Some Time Soon | Boris |