| Özuzun, Murat | Murat Özuzun | Lighting Designer | 2009 | 1 | |
| Öztürk, Zuhal | Zuhal Öztürk | Actor | 2013 | 7 | |
| Öztürk, Özdemir | Özdemir Öztürk | Actor | 1990 | 1 | |
| Özman, Esen | Esen Özman | Actor | 2008 | 1 | |
| Özlek, Sinem | Sinem Özlek | Dramaturg | 2023 | 2 | |
| Özkönü, Nurettin | Özkönü, Nurettin (Nurettin Ozkonu) | Designer | 1982 | 1 | |
| Özkarakâhya, Birsen | Birsen Özkarakâhya | Actor, Dancer | 1956 | 2 | |
| Özer, Harun | Harun Özer (Harun Ozer) | Actor | 2007 | 1 | |
| Özer, Gülhan | Gülhan Özer (Gulhan Ozer) | Designer | 1987 | 1 | |
| Özdoğan, Deniz | Deniz Özdoğan | Actor | 2021 - 2022 | 3 | |
| Özdil, Deniz | Deniz Özdil | Actor | 2010 | 1 | |
| Özdil, Bülent | Bülent Özdil | Actor | 2017 - 2018 | 5 | |
| Özden, Zeynep | Zeynep Özden | Actor | 2022 | 1 | |
| Özdemir, Sengül | Sengül Özdemir | Actor | 2010 | 8 | 2 |
| Özcan, Reha | Reha Özcan | Actor | 2008 | 1 | |
| Özcan, Ilknur | Ilknur Özcan | Actor | 2011 - 2013 | 2 | |
| Özakyol, Nuri | Nuri Özakyol | Lighting Designer | 1975 - 1981 | 2 | |
| Özakyol, Nuri | Nuri Özakyol (Nuri Ozakyol) | Conductor | 1981 | 1 | |
| Ötvös, Kinga | Kinga Ötvös | Actor | 2019 | 1 | |
| Ötvös, András | András Ötvös | Actor | 2013 | 1 | |
| Östlund, Alf | Alf Östlund | Actor | 1972 - 1973 | 4 | |
| Östh, Mattias | Mattias Östh | Actor | 2008 | 1 | |
| Östergren, Pernilla | Pernilla Östergren | Actor | 1989 - 1998 | 5 | 1 |
| Östergren, Niclas | Niclas Östergren | Actor | 1997 | 4 | |
| Östergren, Lise Lotte | Lise Lotte Östergren | Actor | 1997 | 1 | |
| Östergren, Klas | Klas Östergren | Translator | 1988 - 2023 | 169 | 1 |
| Östergren, Ida | Ida Östergren | Actor | 1898 - 1907 | 6 | |
| Östergren, Benno | Benno Östergren | Actor | 1997 | 3 | |
| Östergren, Agnes | Agnes Östergren | Costume Designer | 2023 | 1 | |
| Österdal, Mikaela | Mikaela Österdal | Actor | 1972 - 1973 | 5 | |
| Östby, John | John Östby | Actor | 1937 | 1 | |
| Örtengren, Frans | Frans Örtengren | Actor | 1879 - 1898 | 6 | |
| Örtengren, Albion | Albion Örtengren | Actor | 1883 - 1927 | 19 | 1 |
| Örs, Emre | Emre Örs (Emre Ors) | Dramaturg | 2017 | 1 | |
| Örnmarker, Karin | Karin Örnmarker | Actor | 1991 | 2 | |
| Örndahl, Cita | Cita Örndahl | Actor | 2001 | 4 | |
| Örn, Heikki | Heikki Örn | Lighting Designer | 2008 | 1 | |
| Örn, Hasse | Hasse Örn | Musician | 1995 - 1996 | 4 | |
| Örkényi, Éva | Éva Örkényi | Actor | 1996 | 1 | |
| Ördög, Tamás | Tamás Ördög | Actor, Adaptation, Director | 2009 - 2016 | 10 | 2 |
| Öqvist, Roger | Roger Öqvist | Actor | 1997 | 3 | |
| Öqvist, Jan | Jan Öqvist | Designer, Lighting Designer | 2000 - 2008 | 4 | |
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