| Ostapov, Vladimir | Vladimir Ostapov | Actor | 2005 | 1 | |
| Ostaszewska, Krystyna | Krystyna Ostaszewska | Actor | 1957 | 1 | |
| Ostaszewski, Jakub | Jakub Ostaszewski | Composer | 1995 | 1 | |
| Osten, Emil von | Emil von Osten | Actor | 1890 | 1 | |
| Osten, Käte | Käte Osten | Actor | 1919 - 1923 | 3 | |
| Osten, Susanne | Susanne Osten | Actor | 1919 | 1 | |
| Ostendorf, Josef | Josef Ostendorf | Actor | 1991 - 2016 | 8 | |
| Ostendorf, Nils | Nils Ostendorf | Composer | 2008 - 2014 | 54 | |
| Oster, Teresina | Teresina Oster | Actor | 1906 - 1909 | 4 | |
| Osterberg, Craig | Craig Osterberg | Actor, Designer, Lighting Designer | 2009 | 3 | |
| Osterberger, - | - Osterberger | Actor | 1971 | 2 | |
| Osterloh, Hildegard | Hildegard Osterloh | Actor | 1910 - 1916 | 15 | |
| Ostermann, Brigitte | Brigitte Ostermann | Dramaturg | 2004 - 2008 | 4 | |
| Ostermann, Ferdinand | Ferdinand Ostermann | Actor | 1933 | 1 | |
| Ostermann, Heinz | Heinz Ostermann | Actor | 1995 | 1 | |
| Ostermann, Lothar | Lothar Ostermann | Actor | 1960 - 1976 | 6 | |
| Ostermayer, Christine | Christine Ostermayer | Actor | 1965 - 1969 | 3 | |
| Ostermeier, Bettina | Bettina Ostermeier | Composer | 2011 | 1 | |
| Ostermeier, Thomas | Thomas Ostermeier | Adaptation, Director, Translator | 2002 - 2024 | 232 | |
| Osterop, Marcel | Marcel Osterop | Actor | 2012 - 2013 | 29 | |
| Ostertag, Bernard | Bernard Ostertag | Actor | 1929 | 1 | |
| Ostertag, Dietger | Dietger Ostertag | Actor | 2002 | 1 | |
| Ostertag, Karl | Karl Ostertag | Actor | 1952 | 1 | |
| Osterwalder, Otto | Otto Osterwalder | Musician | 1939 | 1 | |
| Osterwianka, Elżbieta | Elżbieta Osterwianka | Actor | 1973 | 1 | |
| Ostheim, Minna | Minna Ostheim | Actor | 1900 - 1908 | 4 | |
| Osthoff, Otto | Otto Osthoff | Actor | 1951 | 1 | |
| Osthoff, Sabine | Sabine Osthoff | Actor | 2005 | 1 | |
| Ostojic, Biljana | Biljana Ostojic | Director | 1975 | 1 | |
| Ostr, Alois | Alois Ostr | Actor | 1967 | 1 | |
| Ostrander, Ruth | Ruth Ostrander | Actor | 1947 | 1 | |
| Ostrižnaja, O. | O. Ostrižnaja | Lighting Designer | 1999 - 2000 | 2 | |
| Ostroróg, Mieczysław | Mieczysław Ostroróg | Actor | 1968 | 2 | |
| Ostrovskaja, Ljubov' | Ljubov' Ostrovskaja | Actor | 2020 | 1 | |
| Ostrovski, Grischa | Grischa Ostrovski | Director | 1980 | 1 | |
| Ostrow, Isa | Isa Ostrow | Actor | 1941 | 1 | |
| Ostrowicz, Kazimierz | Kazimierz Ostrowicz | Actor | 1975 | 1 | |
| Ostrowska, Franciszka | Franciszka Ostrowska | Actor | 1910 | 2 | |
| Ostrowski, Andrew David | Andrew David Ostrowski | Lighting Designer | 2005 - 2007 | 2 | |
| Ostrowski, Janusz | Janusz Ostrowski | Actor | 1975 | 2 | |
| Ostrowsky, Hartmut | Hartmut Ostrowsky | Director | 1975 | 1 | |
| Ostrugnaj, Anton | Anton Ostrugnaj | Actor | 2002 | 2 | |
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