| Oliversen, Stine, | Stine Oliversen | Actor | 2009 | 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 | |
| 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 | |
| Ordężanka, Janina, | Janina Ordężanka | Actor | 1911 | 1 | |
| Owenberg-Lyche, Ragnhild, | Ragnhild Owenberg-Lyche | Actor | 1911 - 1922 | 6 | 6 |
| O'Connor, Kathleen, | Kathleen O'Connor | Actor | 1912 | 1 | |
| Odstrčilová, Liběna, | Liběna Odstrčilová | Actor | 1913 - 1922 | 3 | |
| 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 | |
| Olander, Sigfrid, | Sigfrid Olander | Actor | 1920 | 1 | |
| Orlandini, Lia, | Lia Orlandini | Actor | 1921 - 1922 | 5 | |
| Otáhalová, Lída, | Lída Otáhalová | Actor | 1922 | 1 | |
| Olson, Jonas, | Jonas Olson | Actor | 1922 | 1 | |
| Opøien-Sigurth, Lydia, | Lydia Opøien-Sigurth | Actor | 1923 | 1 | |
| Opøien, Lydia, | Lydia Opøien | Actor | 1924 - 2006 | 12 | |
| Osipovič, Jakov | Jakov Osipovič | Actor | 1926 | 1 | |
| Orlamundt, Kai | Kai Orlamundt | Actor | 1926 | 1 | |
| Osborne, Eunice | Eunice Osborne | Actor | 1926 | 1 | |
| Olsen, Moroni | Moroni Olsen | Actor | 1927 | 1 | |
| Olland, Bill | Bill Olland | Actor | 1976 | 1 | |
| Oesterhelt, Ingrid | Ingrid Oesterhelt | Actor | 1973 | 1 | |
| Oelmann, Klaus | Klaus Oelmann | Actor | 1973 | 1 | |
| Orson, Barbara | Barbara Orson | Actor | 1968 - 1998 | 7 | |
| Orgill, Paul | Paul Orgill | Actor | 1973 | 1 | |
| Obermüller, Hans | Hans Obermüller | Actor | 1971 - 1981 | 6 | |
| Olsen, L. Katherine | L. Katherine Olsen | Actor | 1928 | 1 | |
| Oen, Einar | Einar Oen | Actor | 1928 | 1 | |
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