| Oftebro, Jakob | Jakob Oftebro | Actor | 2006 - 2022 | 5 | |
| Olofson, Anna | Anna Olofson | Mask Maker | 2006 - 2010 | 58 | |
| Omar, Nasra Ali | Nasra Ali Omar | Musician | 2006 | 1 | |
| Olsen, Elisabeth | Elisabeth Olsen | Actor | 2006 | 1 | |
| Opstad, Eva Cathrine | Eva Cathrine Opstad | Designer | 2007 | 1 | |
| Omar, Sulekha Ali | Sulekha Ali Omar | Choreographer, Dancer | 2008 - 2010 | 4 | |
| Olerud, Ingeborg S. | Ingeborg S. Olerud | Lighting Designer | 2008 - 2010 | 4 | |
| Opheim, Lea Basch | Lea Basch Opheim | Actor | 2009 - 2011 | 3 | |
| Oliversen, Stine | Stine Oliversen | Actor | 2009 | 1 | |
| Osen, Leif | Leif Osen | Musician | 2009 | 1 | |
| Olafsen, Carl Fredrik | Carl Fredrik Olafsen | Director | 2010 | 1 | |
| Ofsdal, Sofie | Sofie Ofsdal | Actor | 2010 | 1 | |
| Olsen, Mathilde Arschim | Mathilde Arschim Olsen | Actor | 2010 | 1 | |
| Olsen, Thea Arschim | Thea Arschim Olsen | Actor | 2010 | 1 | |
| Opedal, Herman Ljung | Herman Ljung Opedal | Actor | 2010 | 3 | |
| Olsen, Kim | Kim Olsen | Actor | 2011 - 2019 | 2 | |
| Olstad, Jon Ole | Jon Ole Olstad | Dancer | 2011 | 1 | |
| Obolensky, Chloé | Chloé Obolensky | Designer | 2011 | 1 | |
| Oborotov, Yuri | Yuri Oborotov | Actor | 2012 | 2 | |
| Ottmar, Aurora Berentsen | Aurora Berentsen Ottmar | Actor | 2012 | 1 | |
| Olstad, Andrea | Andrea Olstad | Actor | 2012 | 2 | |
| Osvik, Erik Baltzek | Erik Baltzek Osvik | Actor | 2012 | 1 | |
| Offerdal, Sindre Strand | Sindre Strand Offerdal | Actor | 2012 - 2015 | 3 | |
| Oftedal, Stian | Stian Oftedal | Actor | 2012 | 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 | |
| Ordężanka, Janina | Janina Ordężanka | Actor | 1911 | 1 | |
| O'Connor, Kathleen | Kathleen O'Connor | Actor | 1912 | 1 | |
| Odstrčilová, Liběna | Liběna Odstrčilová | Actor | 1913 - 1922 | 3 | |
| Ohta, Sanjiro | Sanjiro Ohta | Translator | 1914 | 1 | |
| Ono, Shihoriko | Shihoriko Ono | Actor | 1914 | 1 | |
| Ozols, Jānis | Jānis Ozols | Actor | 1915 | 2 | |
| Orford, Cathleen | Cathleen Orford | Actor | 1913 - 1918 | 4 | |
| Osis, K. | K. Osis | Actor | 1916 | 1 | |
| Okornicka (Miłosz), Helena | Helena Okornicka (Miłosz) | Actor | 1916 | 1 | |
| Olsen, Tonny | Tonny Olsen | Actor | 1918 - 1924 | 5 | |
| Ortega, - | - Ortega | Actor | 1919 | 1 | |
| Olin, Anna | Anna Olin | Actor | 1919 | 1 | |
| Olin, Wilhelm | Wilhelm Olin | Actor, Director | 1891 - 1919 | 2 | |
| Olander, Sigfrid | Sigfrid Olander | Actor | 1920 | 1 | |
| Orlandini, Lia | Lia Orlandini | Actor | 1921 - 1922 | 5 | |
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