| Olmsted, Richard | Richard Olmsted | Designer, Lighting Designer | 2002 - 2003 | 3 | |
| Oggenfuss, Michael | Michael Oggenfuss | Designer, Lighting Designer | 2002 - 2004 | 66 | 1 |
| Offord, Hilde Svennevig | Hilde Svennevig Offord | Actor | 2002 - 2007 | 3 | 1 |
| Oberhof, Valerie | Valerie Oberhof | Actor | 2002 - 2012 | 6 | 1 |
| Otto, Miranda | Miranda Otto | Actor | 2002 - 2015 | 2 | 1 |
| Otto, Philipp | Philipp Otto | Actor | 2002 - 2015 | 11 | 1 |
| Oliveira, João, Ricardo Barros | João Ricardo Barros Oliveira | Musical Director, Sound Designer | 2002 - 2021 | 4 | |
| Ostermeier, Thomas | Thomas Ostermeier | Adaptation, Director, Translator | 2002 - 2024 | 233 | |
| Ogletree, Kathrine | Kathrine Ogletree | Costume Designer | 2003 | 1 | |
| O'Connor, John | John O'Connor | Director | 2003 | 1 | |
| Otnes, Simen M. | Simen M. Otnes | Actor | 2003 | 1 | |
| Odyja-Thacker, Nancy | Nancy Odyja-Thacker | Actor | 2003 | 1 | 1 |
| Opeka, Janel | Janel Opeka | Costume Designer | 2003 | 1 | |
| Oxenvad, Ann Sofie | Ann Sofie Oxenvad | Adaptation | 2003 | 1 | 1 |
| Oelsch, Gabriele | Gabriele Oelsch | Mask Maker | 2003 | 1 | |
| Olson, Tracey | Tracey Olson | Actor | 2003 | 1 | |
| Olinger, Marc | Marc Olinger | Actor | 2003 | 2 | |
| Ové, Indra | Indra Ové | Actor | 2003 | 4 | |
| O'Connell, Robert, A. | Robert A. O'Connell | Director | 2003 | 1 | |
| Oppenberg, Marette | Marette Oppenberg | Costume Designer | 2003 | 2 | 1 |
| Owens, John | John Owens | Sound Designer | 2003 | 4 | |
| Oerlemans, Thomas | Thomas Oerlemans | Actor | 2003 | 1 | |
| O'Leary, Harold | Harold O'Leary | Actor | 2003 | 1 | |
| Ouellette, Michael | Michael Ouellette | Actor | 2003 | 1 | |
| Oetterli, Tanja | Tanja Oetterli | Actor | 2003 | 6 | |
| O'Hare, Damian | Damian O'Hare | Actor | 2003 | 1 | |
| O'Kane, Owen | Owen O'Kane | Actor | 2003 | 1 | |
| O'Connor, Tom | Tom O'Connor | Actor | 2003 | 1 | |
| Ott, Karen | Karen Ott | Dramaturg | 2003 | 1 | |
| Ozono, Jyuri | Jyuri Ozono | Actor | 2003 | 1 | |
| Orlandini, Gianluca | Gianluca Orlandini | Director | 2003 | 1 | |
| Oberender, Thomas | Thomas Oberender | Dramaturg | 2003 - 2004 | 6 | 1 |
| Okpokwasili, Okwui | Okwui Okpokwasili | Actor | 2003 - 2010 | 3 | 1 |
| Olivar, César | César Olivar | Costume Designer | 2004 | 1 | 1 |
| Orenstein, Sarah | Sarah Orenstein | Actor | 2004 | 1 | 1 |
| Orsky, Gudrun | Gudrun Orsky | Director | 2004 | 1 | 1 |
| Olson, Eric | Eric Olson | Actor | 2004 | 1 | |
| Ouellette, Joe | Joe Ouellette | Actor | 2004 | 1 | |
| Owe, David | David Owe | Actor | 2004 | 1 | 1 |
| Orthmeyer, Katharina | Katharina Orthmeyer | Actor | 2004 | 1 | |
| Obritzhauser, Andrea | Andrea Obritzhauser | Actor | 2004 | 1 | 1 |
| O'Callaghan, Tony | Tony O'Callaghan | Actor | 2004 | 1 | 1 |
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