| O'Keeffe, Lorraine | Lorraine O'Keeffe (Lorraine O'Keeffe) | Actor | 1993 | 1 | |
| Olaussen, Gunhild Mathea | Gunhild Mathea Olaussen (Gunhild Mathea Olaussen) | Actor | 1994 - 2000 | 14 | |
| Olsen, Ragnar | Ragnar Olsen (Ragnar Olsen) | Adaptation, Translator | 1994 - 2015 | 48 | |
| Ottersen, Anne Marie | Anne Marie Ottersen (Anne Marie Ottersen) | Actor | 1978 - 2014 | 7 | |
| Olsen, Mikkel Are | Mikkel Are Olsen (Mikkel Are Olsen) | Actor | 1995 - 2007 | 3 | |
| Opdan, Kristin Aafløy | Kristin Aafløy Opdan (Kristin Aafløy Opdan) | Actor | 1996 - 2013 | 2 | |
| Omland, Tone | Tone Omland (Tone Omland) | Actor | 1996 - 2013 | 2 | |
| Osuldsen, Johan | Johan Osuldsen (Johan Osuldsen) | Choreographer | 1998 - 2000 | 3 | |
| Onsaker, Maren K. | Maren K. Onsaker (Maren K. Onsaker) | Actor | 1998 | 2 | |
| Olsen, Anders Schanche | Anders Schanche Olsen (Anders Schanche Olsen) | Actor | 1998 | 1 | |
| Olsen, Linn | Linn Olsen (Linn Olsen) | Actor | 1999 - 2000 | 7 | |
| Olaussen, Vidar | Vidar Olaussen (Vidar Olaussen) | Actor | 1999 - 2006 | 11 | |
| Olstad, Svein | Svein Olstad (Svein Olstad) | Actor | 1999 - 2013 | 14 | |
| Opdal, Karina | Karina Opdal (Karina Opdal) | Actor | 2000 | 2 | |
| Olstad, Even | Even Olstad (Even Olstad) | Actor | 2000 - 2016 | 25 | |
| Olsen, Lillian | Lillian Olsen (Lillian Olsen) | Costume Designer | 2000 | 7 | |
| Ormset, Marie | Marie Ormset (Marie Ormset) | Actor | 2002 | 3 | |
| Odden, Elise Brunstad | Elise Brunstad Odden (Elise Brunstad Odden) | Actor | 2002 | 2 | |
| Offord, Sverre | Sverre Offord (Sverre Offord) | Actor | 2002 | 2 | |
| Offord, Hilde Svennevig | Hilde Svennevig Offord (Hilde Svennevig Offord) | Actor | 2002 - 2007 | 3 | |
| Opsahl, Linda | Linda Opsahl (Linda Opsahl) | Actor | 2002 | 2 | |
| Otnes, Simen M. | Simen M. Otnes (Simen M. Otnes) | Actor | 2003 | 1 | |
| Opsahl, Kristina | Kristina Opsahl (Kristina Opsahl) | Actor | 2004 - 2006 | 6 | |
| Ohlsson, Monica | Monica Ohlsson (Monica Ohlsson) | Dramaturg, Translator | 2005 - 2009 | 8 | |
| Opstad, Peder | Peder Opstad (Peder Opstad) | Actor, Adaptation, Director, Producer | 2005 - 2010 | 183 | |
| Opstad, Cathrine Gåre | Cathrine Gåre Opstad (Cathrine Gåre Opstad) | Costume Designer | 2005 - 2008 | 90 | |
| Olsen, Lars Reynert | Lars Reynert Olsen | Actor | 2005 - 2008 | 90 | |
| Obuchowicz, Bartek Kaminski | Bartek Kaminski Obuchowicz (Bartek Kaminski Obuchowicz) | Actor | 2005 | 1 | |
| Otterstedt, Lars | Lars Otterstedt (Lars Otterstedt) | Actor | 2006 | 11 | |
| Oltedal, Martin Johannes | Martin Johannes Oltedal (Martin Johannes Oltedal) | Actor | 2006 | 1 | |
| Oldani, Emilia | Emilia Oldani (Emilia Oldani) | Actor | 2006 | 2 | |
| Olsen, Julia Stefany | Julia Stefany Olsen (Julia Stefany Olsen) | Actor | 2006 | 1 | |
| Oftebro, Jakob | Jakob Oftebro (Jakob Oftebro) | Actor | 2006 - 2022 | 5 | |
| Olofson, Anna | Anna Olofson (Anna Olofson) | Mask Maker | 2006 - 2010 | 58 | |
| Omar, Nasra Ali | Nasra Ali Omar (Nasra Ali Omar) | Musician | 2006 | 1 | |
| Olsen, Elisabeth | Elisabeth Olsen (Elisabeth Olsen) | Actor | 2006 | 1 | |
| Opstad, Eva Cathrine | Eva Cathrine Opstad (Eva Cathrine Opstad) | Designer | 2007 | 1 | |
| Omar, Sulekha Ali | Sulekha Ali Omar (Sulekha Ali Omar) | Choreographer, Dancer | 2008 - 2010 | 4 | |
| Olerud, Ingeborg S. | Ingeborg S. Olerud (Ingeborg S. Olerud) | Lighting Designer | 2008 - 2010 | 4 | |
| Opheim, Lea Basch | Lea Basch Opheim (Lea Basch Opheim) | Actor | 2009 - 2011 | 3 | |
| Oliversen, Stine | Stine Oliversen (Stine Oliversen) | Actor | 2009 | 1 | |
| Osen, Leif | Leif Osen (Leif Osen) | Musician | 2009 | 1 | |
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