| Otto-Martineck, Rosa, | Rosa Otto-Martineck | Actor | 1876 | 1 | |
| Otto-Morgenstern, Martina, | Martina Otto-Morgenstern | Actor | 1920 - 1921 | 2 | |
| Otto-Osmarr, Lili, | Lili Otto-Osmarr | Actor | 1920 | 2 | |
| Otto, Alex, | Alex Otto | Actor, Director, Playwright | 1898 - 1934 | 21 | |
| Otto, Alexander, | Alexander Otto | Actor, Designer | 1919 - 1966 | 7 | |
| Otto, Anneliese | Anneliese Otto | Actor | 1966 | 1 | |
| Otto, Annie | Annie Otto | Actor | 1992 | 1 | |
| Otto, Asta | Asta Otto | Actor | 1932 | 1 | |
| Otto, Bailey | Bailey Otto | Designer | 2014 | 1 | |
| Otto, Carsten | Carsten Otto | Actor | 1975 - 1976 | 2 | |
| Otto, Driscoll | Driscoll Otto | Lighting Designer | 2018 | 1 | |
| Otto, Erich, | Erich Otto | Actor | 1920 - 1921 | 2 | |
| Otto, Eva | Eva Otto | Actor | 1991 | 2 | |
| Otto, Franz | Franz Otto | Actor | 1917 - 1924 | 3 | |
| Otto, Götz | Götz Otto | Actor | 1993 | 1 | |
| Otto, Hans, | Hans Otto | Actor | 1929 | 1 | |
| Otto, Harald, | Harald Otto | Actor, Director | 1896 - 1922 | 55 | |
| Otto, Heinrich, | Heinrich Otto | Actor | 1896 | 1 | |
| Otto, Hermann | Hermann Otto | Translator | 2002 | 1 | |
| Otto, Herr, | Herr Otto | Actor, Director | 1878 | 2 | |
| Otto, Julius | Julius Otto | Actor | 1880 - 1898 | 6 | |
| Otto, Karl | Karl Otto | Actor | 1910 - 1911 | 2 | |
| Otto, Marg., | Marg. Otto | Actor | 1906 - 1908 | 3 | |
| Otto, Martina, | Martina Otto | Actor | 1915 - 1925 | 7 | |
| Otto, Matt | Matt Otto | Sound Designer | 2017 | 1 | |
| Otto, Miranda | Miranda Otto | Actor | 2002 - 2015 | 2 | |
| Otto, Pavel | Pavel Otto | Actor | 1957 | 1 | |
| Otto, Sabine | Sabine Otto | Actor | 1975 | 2 | |
| Otto, Teo, | Teo Otto | Costume Designer, Designer, Director | 1934 - 1959 | 14 | |
| Otto, Thomas | Thomas Otto | Actor | 1983 - 1993 | 12 | |
| Otto, Victoria | Victoria Otto | Actor | 1990 | 2 | |
| Otto, Wilfried, | Wilfried Otto | Designer | 1958 | 1 | |
| Otto, Wilhelm, | Wilhelm Otto | Actor | 1889 - 1898 | 5 | |
| Ottolini, Piero, | Piero Ottolini | Translator | 1905 - 1906 | 4 | |
| Ottomeyer, Hans Leonard, | Hans Leonard Ottomeyer | Actor | 1878 | 1 | |
| Ottomeyer, J. L., | J. L. Ottomeyer (J. L. Ottomeyer) | Actor | 1891 | 1 | |
| Ottosen, Carl | Carl Ottosen | Actor | 1960 | 1 | |
| Ottosen, Edith | Edith Ottosen | Actor | 1955 - 1967 | 4 | |
| Ottoson, Rune | Rune Ottoson | Actor | 1969 | 1 | |
| Ottosson, Annelie | Annelie Ottosson | Actor | 1993 | 2 | |
| Ottzenn, Paula, | Paula Ottzenn | Actor | 1919 - 1936 | 10 | |
| Otupacca, Alessandro | Alessandro Otupacca | Actor | 2011 | 1 | |
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