| Opel, Rudolf, | Rudolf Opel | Actor | 1901 - 1912 | 3 | |
| Ormond, Margarethe, | Margarethe Ormond | Actor | 1900 - 1901 | 2 | |
| Olden, Hertha, | Hertha Olden | Actor | 1902 | 2 | |
| Ostheim, Minna, | Minna Ostheim | Actor | 1900 - 1908 | 4 | |
| Oehlschläger, Anna, | Anna Oehlschläger | Actor | 1904 | 2 | |
| Onno, Ferdinand, | Ferdinand Onno | Actor | 1904 - 1938 | 9 | |
| Osterloh, Hildegard, | Hildegard Osterloh | Actor | 1910 - 1912 | 15 | |
| Olsen, Ottilie, | Ottilie Olsen | Actor | 1906 | 1 | |
| Otto, Marg., | Marg. Otto | Actor | 1906 - 1908 | 3 | |
| Ottmay, Georg, | Georg Ottmay | Actor | 1906 - 1914 | 8 | |
| Oehlmann, Hans, | Hans Oehlmann | Actor | 1909 | 1 | |
| Olden, Arno W., | Arno W. Olden (Arno W. Olden) | Actor | 1910 | 1 | |
| Osmarr, Lili, | Lili Osmarr | Actor | 1911 | 7 | |
| Orska, Daisy, | Daisy Orska | Actor | 1911 | 1 | |
| Ott, Gisa, | Gisa Ott | Actor | 1910 - 1913 | 9 | |
| Otto, Martina, | Martina Otto | Actor | 1915 - 1925 | 7 | |
| Orth, Hubert, | Hubert Orth | Actor | 1916 | 2 | |
| Ostwald, Frank, | Frank Ostwald | Actor | 1917 - 1921 | 5 | |
| Ott, Rita, | Rita Ott | Actor | 1917 | 1 | |
| Oesterheld, Heinrich, | Heinrich Oesterheld | Actor | 1918 - 1919 | 2 | |
| Orth, Frk., | Frk. Orth | Actor | 1918 | 2 | |
| Opitz, Felicitas, | Felicitas Opitz | Actor | 1918 | 2 | |
| Ottzenn, Paula, | Paula Ottzenn | Actor | 1919 - 1936 | 10 | |
| Oettinger, Liesel, | Liesel Oettinger | Actor | 1919 | 1 | |
| Oehler, Hans, | Hans Oehler | Actor | 1919 | 1 | |
| Otto-Morgenstern, Martina, | Martina Otto-Morgenstern | Actor | 1920 - 1921 | 2 | |
| Ott, Magdalena, | Magdalena Ott | Actor | 1919 | 2 | |
| Otto-Osmarr, Lili, | Lili Otto-Osmarr | Actor | 1920 | 2 | |
| Olsen, Hanns, | Hanns Olsen | Actor | 1921 | 4 | |
| Oppermann, Leonore, | Leonore Oppermann | Actor | 1919 | 3 | |
| Osten, Käte, | Käte Osten | Actor | 1919 | 3 | |
| Ozory, Armand, | Armand Ozory | Actor | 1925 - 1953 | 8 | |
| Olden, Melanie, | Melanie Olden | Actor | 1926 | 1 | |
| Oszke, -, | - Oszke | Actor | 1928 | 1 | |
| Ondra, -, | - Ondra | Actor | 1928 | 1 | |
| Oltersdorf, Erich, | Erich Oltersdorf | Actor | 1928 | 1 | |
| Otto, Hans, | Hans Otto | Actor | 1929 | 1 | |
| Ostermann, Ferdinand, | Ferdinand Ostermann | Actor | 1933 | 1 | |
| Ott, Rudolf, | Rudolf Ott | Actor | 1935 | 1 | |
| Obonya, Hanns, | Hanns Obonya | Actor | 1935 - 1938 | 1 | |
| Overlack, Olga, | Olga Overlack | Actor | 1938 | 1 | |
| Oppel, Günther, | Günther Oppel | Actor | 1938 | 1 | |
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Contributors
