| Omar, Nasra Ali | Nasra Ali Omar | Musician | 2006 | 1 | |
| Olsen, Elisabeth | Elisabeth Olsen | Actor | 2006 | 1 | |
| Owusu, Janet | Janet Owusu | Director | 2006 | 1 | 1 |
| Olivette, Marcia, Ossei Agyeman | Marcia Ossei Agyeman Olivette | Actor | 2006 | 1 | 4 |
| Otani, Hayato | Hayato Otani | Lighting Designer | 2006 | 2 | |
| Ortiz, Alain | Alain Ortiz | Designer | 2006 | 3 | |
| Oswald, Simone | Simone Oswald | Actor | 2006 | 1 | |
| Oxnam, Brad | Brad Oxnam | Actor | 2006 | 1 | |
| O'Neal, Timothy | Timothy O'Neal | Actor | 2006 | 1 | |
| Osgood, Erin | Erin Osgood | Actor | 2006 | 1 | |
| Olvera, Viridiana | Viridiana Olvera | Actor | 2006 | 12 | |
| O'Brien, Patrick | Patrick O'Brien | Actor | 2006 | 1 | |
| Otteni, Stefan | Stefan Otteni | Director | 2006 | 1 | |
| Otani, Ro | Ro Otani | Actor | 2006 | 1 | |
| Owen, Lisa | Lisa Owen | Actor | 2006 | 1 | |
| Oura, Mizuki | Mizuki Oura | Actor | 2006 | 3 | |
| Ontiveros, Montserrat | Montserrat Ontiveros | Actor | 2006 | 2 | |
| Ocampo, Pavel | Pavel Ocampo | Musician | 2006 | 2 | |
| Olsen, Tyler | Tyler Olsen | Actor | 2006 | 25 | |
| Oberlik, Katharina | Katharina Oberlik | Actor | 2006 | 1 | |
| Olympia Pagoulatou, Olympia | Olympia Pagoulatou | Actor | 2006 | 1 | |
| O'Connor, Jim | Jim O'Connor | Actor | 2006 | 1 | 1 |
| O'Neill, Luke | Luke O'Neill | Actor | 2006 | 1 | |
| O'Brien, Jackie | Jackie O'Brien | Actor | 2006 | 10 | |
| O'Rorke, Elle | Elle O'Rorke | Actor | 2006 | 1 | |
| Olsen, Mikkel, Are | Mikkel Are Olsen | Dancer | 2006 | 1 | |
| Omrani, Mohammad | Mohammad Omrani | Actor | 2006 | 1 | |
| Omoto, Luka | Luka Omoto | Actor | 2006 | 1 | |
| Oberhäußer, Frank | Frank Oberhäußer | Assistant Director | 2006 | 1 | |
| Okura, Shonosuke | Shonosuke Okura | Actor | 2005 - 2013 | 14 | |
| Opstad, Peder | Peder Opstad | Actor, Adaptation, Director, Producer | 2005 - 2010 | 183 | |
| Ohlsson, Monica | Monica Ohlsson | Dramaturg, Translator | 2005 - 2009 | 8 | 1 |
| Opstad, Cathrine Gåre | Cathrine Gåre Opstad | Costume Designer | 2005 - 2008 | 90 | |
| Olsen, Lars Reynert | Lars Reynert Olsen | Actor | 2005 - 2008 | 90 | |
| Ostrowski, Andrew David | Andrew David Ostrowski | Lighting Designer | 2005 - 2007 | 2 | |
| Ostałowska, Dominika | Dominika Ostałowska | Actor | 2005 - 2006 | 4 | |
| Odasso, Cristina | Cristina Odasso | Actor | 2005 - 2006 | 19 | |
| Obrtelová, Nora | Nora Obrtelová | Dramaturg | 2005 | 1 | |
| Obuchowicz, Bartek Kaminski | Bartek Kaminski Obuchowicz | Actor | 2005 | 1 | |
| Oliver, Heather | Heather Oliver | Producer | 2005 | 2 | |
| Orosz, Helga | Helga Orosz | Actor | 2005 | 2 | |
| Oltványi, Klára | Klára Oltványi | Costume Designer | 2005 | 1 | |
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