| Ohhinata, Minoru | Minoru Ohhinata | Actor | 2002 | 1 | |
| Okazaki, Kazuhiko | Kazuhiko Okazaki | Actor | 2002 | 1 | |
| Olsavszky, Éva | Éva Olsavszky | Actor | 2002 | 1 | |
| Orbán, György | György Orbán | Composer | 1972 | 2 | |
| O'Byrne, Adam | Adam O'Byrne | Actor | 2002 | 1 | |
| Otto , Philipp | Philipp Otto | Actor | 2002 - 2016 | 11 | |
| Orlemann, Jed | Jed Orlemann | Actor | 2002 | 4 | |
| Olmsted, Richard | Richard Olmsted | Designer, Lighting Designer | 2002 - 2003 | 3 | |
| Otte, Jehuda | Jehuda Otte | Actor | 2002 | 1 | |
| Oggenfuss, Michael | Michael Oggenfuss | Designer, Lighting Designer | 2002 - 2003 | 66 | |
| Odor, Josh | Josh Odor | Actor | 2002 | 1 | |
| Ocel, Tim | Tim Ocel | Director | 2002 | 1 | |
| Otto, Hermann | Hermann Otto | Translator | 2002 | 1 | |
| Oliver, Simon | Simon Oliver | Designer | 2002 | 1 | |
| Ostertag, Dietger | Dietger Ostertag | Actor | 2002 | 1 | |
| Ostrugnaj, Anton | Anton Ostrugnaj | Actor | 2002 | 2 | |
| Oberhof, Valerie | Valerie Oberhof | Actor | 2002 - 2012 | 6 | |
| Oestreicher, Samantha | Samantha Oestreicher | Actor | 2002 | 1 | |
| Osztovits, Cecilia | Cecilia Osztovits | Adaptation | 2002 | 1 | |
| ouloupaki, Niki | Niki ouloupaki | Actor | 2002 - 2003 | 1 | |
| Offord, John | John Offord | Lighting Designer | 2002 | 1 | |
| O'Berski, Jay | Jay O'Berski | Actor | 2002 | 1 | |
| Ott, Marcel | Marcel Ott | Actor | 2002 - 2003 | 2 | |
| Okada, Yoko | Yoko Okada | Actor | 1997 | 1 | |
| Olszówka, Edyta | Edyta Olszówka | | | | |
| Olszówka, Edyta | Edyta Olszówka | Actor | 1997 | 1 | |
| Oltványi , Klára | Klára Oltványi | Costume Designer | 2005 | 1 | |
| Orvik, Karianne | Karianne Orvik | Actor | 2015 | 1 | |
| Opeka, Janel | Janel Opeka | Costume Designer | 2003 | 1 | |
| Oberthür, Martina | Martina Oberthür | Actor | 1989 | 4 | |
| Osborne, Duncan | Duncan Osborne | Actor | 1989 | 1 | |
| Oxenvad, Ann Sofie | Ann Sofie Oxenvad | Adaptation | 2003 | 1 | |
| O'Neill, Errol | Errol O'Neill | Actor | 1989 | 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 | |
| Ozment, Nicholas | Nicholas Ozment | Actor | 2001 | 1 | |
| Orzechowski, Kevin | Kevin Orzechowski | Actor | 2001 | 1 | |
| Oberender, Thomas | Thomas Oberender | Dramaturg | 2003 - 2005 | 6 | |
| Overton, Kelly | Kelly Overton | Actor | 2001 | 1 | |
| Ocampo, Paul | Paul Ocampo | Actor, Dancer | 2001 | 2 | |
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Contributors
