| Olson, Todd | Todd Olson | Sound Designer | 2012 | 1 | |
| O'Brien, Daniel | Daniel O'Brien | Actor | 2012 | 1 | 1 |
| Osmond, David | David Osmond | Actor | 2012 | 1 | |
| Oľšavská, Antónia | Antónia Oľšavská | Actor | 2012 | 2 | |
| Olejár, Peter | Peter Olejár | Actor | 2012 | 2 | |
| Ordeman, Lee | Lee Ordeman | Actor | 2012 | 1 | 3 |
| Oehl, Fabian | Fabian Oehl | Actor | 2012 | 2 | |
| O'Reilly, Vincent, A. | Vincent A. O'Reilly | Adaptation, Director | 2012 | 2 | |
| O'Donnell, Patrick | Patrick O'Donnell | Actor | 2012 | 1 | 2 |
| Ocina, Gabriel | Gabriel Ocina | Actor | 2012 | 1 | |
| Oliver, David | David Oliver | Director | 2012 | 1 | |
| Oakes, Simeon | Simeon Oakes | Actor | 2012 | 1 | |
| Ophelders, Michael | Michael Ophelders | Actor | 2012 | 1 | |
| Oikonomou, Michalis | Michalis Oikonomou | Actor | 2012 | 1 | |
| O'Connell, Moya | Moya O'Connell | Actor | 2012 | 1 | |
| O'Sullivan, Anne | Anne O'Sullivan | Actor | 2012 | 1 | |
| O'Keefe, Tim | Tim O'Keefe | Actor | 2012 | 2 | |
| Olschak, Jayne | Jayne Olschak | Actor | 2012 | 1 | |
| Odintsova, Polina | Polina Odintsova | Actor | 2012 | 1 | 1 |
| Oosterveen, Mark | Mark Oosterveen | Actor | 2012 | 1 | |
| Olympiou, Adia | Adia Olympiou | Actor | 2012 | 1 | |
| Oraloğlu, Alev | Alev Oraloğlu | Actor | 2012 | 1 | |
| Oroșanu, Cristian | Cristian Oroșanu | Conductor | 2012 | 1 | |
| Oviedo, Alejandra | Alejandra Oviedo | Actor | 2012 - 2013 | 3 | |
| Otten, Marcel | Marcel Otten | Translator | 2012 - 2013 | 29 | |
| Osterop, Marcel | Marcel Osterop | Actor | 2012 - 2013 | 29 | |
| Obst, Angela | Angela Obst | Dramaturg | 2012 - 2014 | 2 | |
| Offerdal, Sindre Strand | Sindre Strand Offerdal | Actor | 2012 - 2015 | 3 | |
| Oechel, Hagen | Hagen Oechel | Actor | 2012 - 2015 | 2 | 2 |
| Olsen, Thale Kvam | Thale Kvam Olsen | Costume Designer, Designer | 2013 | 4 | |
| Ovenstrøm, Halvor | Halvor Ovenstrøm | Musician | 2013 | 1 | |
| Ovrum, Arild | Arild Ovrum | Musician | 2013 | 1 | |
| O'Connor, Thom | Thom O'Connor | Composer | 2013 | 1 | |
| O'Connor, Peter, Dylan | Peter Dylan O'Connor | Actor | 2013 | 1 | 1 |
| Owen, Philip | Philip Owen | Sound Designer | 2013 | 1 | |
| Owen, Jenny | Jenny Owen | Actor | 2013 | 1 | |
| O'Hara, Caitlin | Caitlin O'Hara | Designer | 2013 | 1 | |
| Olsen, Roar, Skau | Roar Skau Olsen | Sound Designer | 2013 | 1 | |
| Okhlupin, Igor | Igor Okhlupin (Игорь Охлупин) | Actor | 2013 | 1 | |
| Otčenášek, Štěpán | Štěpán Otčenášek | Dramaturg | 2013 | 3 | |
| Olivo, Oscar | Oscar Olivo | Actor | 2013 | 1 | |
| Oestereich, Tilman | Tilman Oestereich | Assistant Director | 2013 | 1 | |
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