伊戈·西姆，Karol Juliusz "Igo" Sym (3 July 1896 – 7 March 1941) was an actor and collaborator with Nazi Germany. He was killed in Warsaw by members of the Polish resistance movement.Early careerSym was born in Innsbruck, the son of Anton Sym, a Pole from Niepołomice in Galicia, and his Austrian wife, Julia (née Sepp). During World War I he served in the Austro-Hungarian Army, becoming a lieutenant. After the war, he served in the Polish Armed Forces infantry in the rank of a First Lieutenant, until in 1921 he took up the job of a bank attorney.Sym's movie debut took place in 1925, in a film called Vampires of Warsaw (of which no copy is known to exist). Handsome and athletic, he often played aristocrats and army officers. In 1927 he left for Vienna, where he signed a contract with the Sascha-Film production company. In late 1920s Sym worked mainly in Austria and Germany, appearing with such actresses as Marlene Dietrich, Anny Ondra and Lilian Harvey in silent movies like Die Pratermizzi and Café Elektric directed by Gustav Ucicky.At the beginning of the 1930s, Sym returned to Poland and settled in Warsaw. He largely ceased working in motion pictures, instead appearing on the Warsaw theatre stage. He entertained by singing, dancing and playing the musical saw; he notably taught Dietrich to play the instrument.CollaborationAfter the Invasion of Poland on 1 September 1939, Sym stayed in German-occupied Warsaw. Known before the war for his pro-German stance, the actor signed the Volksliste, thus becoming a Volksdeutscher. Due to his fame, the Germans considered him an asset in legitimizing their authority. The General Government's propaganda department therefore made him director of Warsaw's Theater der Stadt Warschau, formerly Teatr Polski (the Polish Theater). Sym was also director of the Nur für Deutsche cinema, the Helgoland (formerly the Palladium), and licensee of the Teatr Komedia.Sometime in late 1939, Sym became a Gestapo agent. According to preserved documents, he had co