| Ostermeier, Thomas | Thomas Ostermeier | Adaptation, Director, Translator | 2002 - 2024 | 234 | |
| 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 | 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 | |
| Ostužev, Aleksandr, Alekseevic | Aleksandr Alekseevic Ostužev | Actor | 1909 | 1 | |
| Ostwald, Frank | Frank Ostwald | Actor | 1917 - 1937 | 5 | |
| Osuldsen, Johan | Johan Osuldsen | Choreographer | 1998 - 2000 | 3 | |
| Osvald, Aksel | Aksel Osvald | Actor | 1933 - 1935 | 3 | |
| Osvik, Erik Baltzek | Erik Baltzek Osvik | Actor | 2012 | 1 | |
| Oswald, Axsel | Axsel Oswald | Actor | 1936 - 1937 | 2 | |
| Oswald, Birgit | Birgit Oswald | Actor | 1993 | 1 | |
| Oswald, Christof | Christof Oswald | Actor | 1996 | 1 | |
| Oswald, Cornelius | Cornelius Oswald | Designer | 2014 | 1 | 1 |
| Oswald, David | David Oswald | Director | 1993 | 1 | |
| Oswald, Karin | Karin Oswald | Actor, Adaptation | 2007 | 2 | |
| Oswald, Richard | Richard Oswald | Actor, Director, Producer | 1910 - 1919 | 10 | |
| Oswald, Simone | Simone Oswald | Actor | 2006 | 1 | |
| Oszke, - | - Oszke | Actor | 1928 | 1 | |
| Oszter, Sándor | Sándor Oszter | Actor | 1978 - 2007 | 2 | 1 |
| Osztovits, Cecilia | Cecilia Osztovits | Adaptation | 2002 | 1 | 1 |
| Otáhalová, Lída | Lída Otáhalová | Actor | 1922 | 1 | |
| Otani, Hayato | Hayato Otani | Lighting Designer | 2006 | 2 | |
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