| Ano | Nota | Título | Personagem |
|---|---|---|---|
| 1972 | Hollywood: The Dream Factory | Self (archive footage) | |
| 1966 | Um Biruta em Órbita | Russian Delegate | |
| 1966 | Uma Loura Por Um Milhão | Professor Winterhalter | |
| 1966 | The Last of the Secret Agents? | Prof. Werner von Koenig | |
| 1966 | Doom of Dracula | The Burgomaster (archive footage) | |
| 1964 | 36 Horas | German Guard | |
| 1964 | Robin Hood de Chicago | Hammacher (uncredited) | |
| 1961 | Cupido Não Tem Bandeira | Count von Droste Schattenburg (voice) (uncredited) | |
| 1961 | Mocinho Encrenqueiro | Baron Elston Carteblanche | |
| 1960 | Around the World with Nellie Bly | Tug Captain | |
| 1957 | Asas de Águia | Manager | |
| 1955 | Spy Chasers | King Rinko | |
| 1955 | Rios de Aventura | Spectacle Man | |
| 1955 | Carolina Cannonball | Stefan | |
| 1954 | O Rei do Circo | Fritz Schlitz | |
| 1954 | Natal Branco | Landlord (uncredited) | |
| 1954 | A Farra dos Malandros | Dr. Emile Egelhofer | |
| 1954 | Música e Lágrimas | W. Kranz | |
| 1953 | Die Jungfrau auf dem Dach | - | |
| 1953 | Houdini, O Homem Miraculoso | Schultz | |
| 1953 | Inferno Nº 17 | Sgt. Johann Sebastian Schulz | |
| 1952 | Dois Caipiras em Paris | Cyrus Kraft | |
| 1952 | O Mundo em Seus Braços | General Ivan Vorashilov | |
| 1952 | Páginas da Vida | Menkie (segment "The Gift of the Magi") (uncredited) | |
| 1951 | Escândalos na Riviera | Gapeaux | |
| 1950 | Father Is a Bachelor | Jericho Schlosser | |
| 1949 | Mercado Humano | Hugo Wolfgang Ulrich | |
| 1948 | The Emperor Waltz | Dr. Zwieback | |
| 1948 | Give My Regards to Broadway | Arthur Dinkel | |
| 1948 | If You Knew Susie | Count Alexis | |
| 1947 | Mother Wore Tights | Papa | |
| 1946 | Faithful in My Fashion | Professor Boris Riminoffsky | |
| 1946 | Canção Inesquecível | Wilowski | |
| 1946 | Uma Noite em Casablanca | Count Pfefferman / Heinrich Stubel | |
| 1945 | The Dolly Sisters | Ignatz Tsimmis | |
| 1945 | Ela Foi às Corridas | Dr. Gurke | |
| 1945 | Men in Her Diary | Mme. Irene | |
| 1945 | Czarina | General Ronsky | |
| 1944 | A Mansão de Frankenstein | Burgomeister Hussman | |
| 1944 | O Que Matou Por Amor | Kuzma | |
| 1944 | The Hitler Gang | General von Hindenburg | |
| 1944 | O Tempo é uma Ilusão | Mr. Beckstein | |
| 1943 | A Canção de Bernadette | Louis Bouriette | |
| 1943 | Dez Pequenas Para um Homem | Ambassador | |
| 1943 | Sweet Rosie O'Grady | Joe Flugelman | |
| 1943 | They Came to Blow Up America | Dr. Herman Holger | |
| 1943 | Tarzan O Vencedor | Sergeant | |
| 1942 | Paixão Oriental | Jarubi | |
| 1942 | Fugitivos do Inferno | Preuss | |
| 1942 | Berlin Correspondent | Dr. Dietrich | |
| 1942 | Enemy Agents Meet Ellery Queen | Heinrich, Spy Leader | |
| 1942 | Sua Excia. O Réu | Dr. Alex Dubroc | |
| 1942 | Ser ou Não Ser | Col. Ehrhardt | |
| 1942 | Remember Pearl Harbor | Dirk Van Hoorten | |
| 1941 | Breakdowns of 1941 | Self (archive footage) (uncredited) | |
| 1941 | This Woman Is Mine | John Jacob Astor | |
| 1941 | World Premiere | Franz von Bushmaster | |
| 1941 | Gloriosa Vitória | Professor Herman Von Reiter | |
| 1941 | Love Crazy | Dr. Wuthering | |
| 1941 | A Tragédia do Circo | Hoffman the Great | |
| 1941 | That Uncertain Feeling | Kafka (as Sig Rumann) | |
| 1941 | The Man Who Lost Himself | Dr. Simms (as Sig Rumann) | |
| 1941 | So Ends Our Night | Ammers | |
| 1940 | Victory | Mr. Schomberg | |
| 1940 | O Inimigo X | Emil Von Hofer | |
| 1940 | Bitter Sweet | Herr Schlick | |
| 1940 | Four Sons | Newmann | |
| 1940 | Sedutora Aventureira | Herr Protz | |
| 1940 | Outside the Three-Mile Limit | Van Cleve | |
| 1940 | A Vida do Dr. Ehrlich | Dr. Hans Wolfert | |
| 1939 | Remember? | Dr. Schmidt | |
| 1939 | Ninotchka | Comrade Iranoff | |
| 1939 | Paraíso Infernal | Dutchy | |
| 1939 | Confissões de um Espião Nazista | Krogman | |
| 1939 | Um Golpe Errado | Poppa Ingleborg | |
| 1939 | Honolulu | Psychiatrist | |
| 1938 | A Grande Valsa | Wertheimer | |
| 1938 | Suez | Sergeant Pellerin | |
| 1938 | Girls on Probation | Roger Heath | |
| 1938 | I'll Give a Million | Anatole Primerose | |
| 1938 | Paradise for Three | Mr. Bold | |
| 1938 | The Saint in New York | Hutch Rellin | |
| 1937 | Thank You, Mr. Moto | Colonel Tchernov | |
| 1937 | Nada é Sagrado | Dr. Emil Eggelhoffer | |
| 1937 | Heidi | Police Captain | |
| 1937 | Lancer Spy | Lt. Col. Gottfried Hollen | |
| 1937 | Thin Ice | Prime Minister | |
| 1937 | Love Under Fire | General Montero | |
| 1937 | Think Fast, Mr. Moto | Nicolas Marloff | |
| 1937 | Um Dia nas Corridas | Dr. Leopold X. Steinberg | |
| 1937 | A Força do Coração | Gus | |
| 1937 | The Great Hospital Mystery | Dr. Taggert | |
| 1937 | Midnight Taxi | John B. Rudd | |
| 1937 | Maytime | Fanchon (as Sig Rumann) | |
| 1937 | Seventh Heaven | Durand (as Sig Rumann) | |
| 1937 | On the Avenue | Herr Hanfstangel | |
| 1936 | The Bold Caballero | Commandante Sebastian Golle | |
| 1936 | The Princess Comes Across | Steindorf | |
| 1935 | East of Java | Hans Muller | |
| 1935 | Uma Noite na Ópera | Gottlieb | |
| 1935 | Amor Singelo | Blacksmith | |
| 1935 | Spring Tonic | Matt Conklin | |
| 1935 | A Noite Nupcial | Mr. Jan Novak | |
| 1935 | Under Pressure | Doctor | |
| 1934 | Marie Galante | Brogard | |
| 1934 | Servants' Entrance | Hans Hansen (as Siegfried Rumann) | |
| 1934 | E o Mundo Marcha | Baron von Gerhardt (as Siegfried Rumann) | |
| 1929 | Die Königsloge | Bailiff | |
| 1929 | Lucky Boy | Bridge player (Unbilled) |