 Meteor1979 · Russian Premier | Russian Premier |
 Keefer1978 · Priest | Priest |
 The President's Mistress1978 · Josef | Josef |
 Topaz1969 · Meeting Co-Ordinator (uncredited) | Meeting Co-Ordinator (uncredited) |
 The File on Devlin1969 · The Soviet Ambassador | The Soviet Ambassador |
 Dick Tracy - The Plot To Kill NATO1967 · Markov | Markov |
 Batman1966 · Soviet Delegate (uncredited) | Soviet Delegate (uncredited) |
 Hitler1962 · Field Marshal Erwin Rommel | Field Marshal Erwin Rommel |
 Blue Hawaii1961 · Paul Duval (uncredited) | Paul Duval (uncredited) |
 Ocean's Eleven1960 · Freeman (Casino Owner) (uncredited) | Freeman (Casino Owner) (uncredited) |
 Judgment at Nuremberg1959 · Frederich Hoffstetter | Frederich Hoffstetter |
 Auntie Mame1958 · Vladimir Klinkoff (uncredited) | Vladimir Klinkoff (uncredited) |
 Missile Monsters1958 · Mota | Mota |
 Bailout at 43,0001957 · Dr. Franz Gruener | Dr. Franz Gruener |
 Kelly and Me1957 · Milo | Milo |
 The Eddy Duchin Story1956 · Philip | Philip |
 Creature with the Atom Brain1955 · Dr. Wilhelm Steigg | Dr. Wilhelm Steigg |
 King of the Carnival1955 · Zorn (as Gregory Gay) | Zorn (as Gregory Gay) |
 Jungle Man-Eaters1954 · Leroux | Leroux |
 Charge of the Lancers1954 · Cpl. Bonikoff | Cpl. Bonikoff |
 With This Ring1954 · Actor | Actor |
 Flame of Calcutta1953 · Amir Khasid | Amir Khasid |
 Remains to Be Seen1953 · Headwaiter (uncredited) | Headwaiter (uncredited) |
 The Juggler1953 · Harry (uncredited) | Harry (uncredited) |
 Commando Cody: Sky Marshal of the Universe1953 · The Ruler | The Ruler |
 Savage Mutiny1953 · Carl Kroman | Carl Kroman |
 The World in His Arms1952 · Colonel Paul Shushaldin | Colonel Paul Shushaldin |
 Bal Tabarin1952 · Jean Dufar | Jean Dufar |
 The Magic Carpet1951 · Caliph Ali | Caliph Ali |
 The Whip Hand1951 · Sweitart (uncredited) | Sweitart (uncredited) |
 Peking Express1951 · Stanislaus | Stanislaus |
 Flying Disc Man from Mars1950 · Mota | Mota |
 Harbor of Missing Men1950 · Captain Koretsky (as Gregory Gay) | Captain Koretsky (as Gregory Gay) |
 Dancing in the Dark1949 · Headwaiter | Headwaiter |
 Black Magic1949 · Chambord / Monk (as Gregory Gay) | Chambord / Monk (as Gregory Gay) |
 The Bachelor and the Bobby-Soxer1947 · Maitre d'Hotel | Maitre d'Hotel |
 Blackmail1947 · Jervis (as Gregory Gay) | Jervis (as Gregory Gay) |
 The Trespasser1947 · Mr. E. Charles | Mr. E. Charles |
 The Corpse Came C.O.D.1947 · Director | Director |
 So Dark the Night1946 · Actor | Actor |
 Passkey to Danger1946 · Mr. Warren | Mr. Warren |
 Cornered1945 · Perchon, German Banker | Perchon, German Banker |
 The Tiger Woman1945 · Joe Sapphire (as Gregory Gay) | Joe Sapphire (as Gregory Gay) |
 Paris Underground1945 · Tissier | Tissier |
 I Love a Mystery1945 · Dr. Han (Uncredited) | Dr. Han (Uncredited) |
 A Song to Remember1945 · Young Russian (uncredited) | Young Russian (uncredited) |
 The Conspirators1944 · Antone Wynat (uncredited) | Antone Wynat (uncredited) |
 Seven Doors to Death1944 · Henry Butler aka Gregor (as Gregory Gay) | Henry Butler aka Gregor (as Gregory Gay) |
 The Purple Heart1944 · Actor | Actor |
 One Dangerous Night1943 · Dr. Eric Budenny (as Gregory Gay) | Dr. Eric Budenny (as Gregory Gay) |
 Casablanca1943 · German Banker Refused by Rick (uncredited) | German Banker Refused by Rick (uncredited) |
 Fall In1942 · Karl, Nazi Wiretapper | Karl, Nazi Wiretapper |
 The Secret Code1942 · Nazi Agent Feldon | Nazi Agent Feldon |
 I Wake Up Screaming1941 · Headwaiter | Headwaiter |
 They Dare Not Love1941 · Von Mueller | Von Mueller |
 Down Argentine Way1940 · Sebastian | Sebastian |
 Ninotchka1939 · Count Alexis Rakonin | Count Alexis Rakonin |
 On Your Toes1939 · Vassilly - Slave in Ballet | Vassilly - Slave in Ballet |
 Hotel for Women1939 · Fernando Manfredi | Fernando Manfredi |
 The Three Musketeers1939 · Vitray | Vitray |
 Paris Honeymoon1939 · Count Georges De Remi | Count Georges De Remi |
 Breakdowns of 19381938 · Prince Boris (archive footage) (uncredited) | Prince Boris (archive footage) (uncredited) |
 Straight, Place and Show1938 · Vladimir Borokov - Russian Jockey | Vladimir Borokov - Russian Jockey |
 Too Hot to Handle1938 · Popoff | Popoff |
 Bulldog Drummond's Peril1938 · Raoul | Raoul |
 Love, Honor and Behave1938 · Count Humbert | Count Humbert |
 Wise Girl1937 · Prince Leopold | Prince Leopold |
 Tovarich1937 · Count Frederic Brekenski | Count Frederic Brekenski |
 Prescription for Romance1937 · Dr. Paul Azarny | Dr. Paul Azarny |
 First Lady1937 · Prince Boris Gregoravitch | Prince Boris Gregoravitch |
 Lancer Spy1937 · Capt. Freymann | Capt. Freymann |
 Mama Steps Out1937 · Dmitri | Dmitri |
 That Girl from Paris1936 · Paul Joseph DeVry (uncredited) | Paul Joseph DeVry (uncredited) |
 Charlie Chan at the Opera1936 · Enrico Borelli | Enrico Borelli |
 Under Your Spell1936 · Count Raul Du Rienne | Count Raul Du Rienne |
 Dodsworth1936 · Baron Kurt Von Obersdorf | Baron Kurt Von Obersdorf |
 Hollywood Boulevard1936 · Russian Writer (uncredited) | Russian Writer (uncredited) |
 British Agent1934 · Mr. Kolinoff | Mr. Kolinoff |
 Handy Andy1934 · Pierre Martel | Pierre Martel |
 Young as You Feel1931 · Pierre | Pierre |
 Kept Husbands1931 · Mons. Prinz (uncredited) | Mons. Prinz (uncredited) |
 Renegades1930 · Dmitri Vologuine | Dmitri Vologuine |
 What a Widow!1930 · Baslikoff | Baslikoff |
 The Song of the Flame1930 · Actor | Actor |
 High Society Blues1930 · Count Prunier | Count Prunier |
 They Had to See Paris1929 · Prince Ordinsky (uncredited) | Prince Ordinsky (uncredited) |
 The Case of Lena Smith1929 · (uncredited) | (uncredited) |
| SSome Time SoonBoris | Boris |
