| Oraker, Rutledge | Rutledge Oraker | Actor | 1932 | 2 | |
| Ogawa, Toshiro | Toshiro Ogawa | Lighting Designer | 1964 | 2 | |
| O'Reilly, James | James O'Reilly | Actor | 1981 | 2 | |
| Otto, Herr, | Herr Otto | Actor, Director | 1878 | 2 | |
| Olin, Vilhelm, | Vilhelm Olin | Actor | 1886 - 1919 | 2 | |
| Ott, Mr., | Mr. Ott | Actor | 1889 - 1890 | 2 | |
| Oberle, Thomas, | Thomas Oberle | Actor | 1891 | 2 | |
| Olbrich, Irmgard, | Irmgard Olbrich | Actor | 1893 | 2 | |
| Onorato, Mr., | Mr. Onorato | Actor | 1893 | 2 | |
| Olander, Albert, | Albert Olander | Actor | 1893 | 2 | |
| Oliver, Olive, | Olive Oliver | Actor | 1894 | 2 | |
| Orling, O., | O. Orling | Designer | 1895 | 2 | |
| Ockert, Mr., | Mr. Ockert | Actor | 1898 | 2 | |
| Owerłło, Paweł, | Paweł Owerłło | Actor | 1899 - 1905 | 2 | |
| Ormond, Margarethe, | Margarethe Ormond | Actor | 1900 - 1901 | 2 | |
| Olden, Hertha, | Hertha Olden | Actor | 1902 | 2 | |
| Oehlschläger, Anna, | Anna Oehlschläger | Actor | 1904 | 2 | |
| Oberländer, Hans, | Hans Oberländer | Director | 1904 | 2 | |
| Orth, Hubert, | Hubert Orth | Actor | 1916 | 2 | |
| Oesterheld, Heinrich, | Heinrich Oesterheld | Actor | 1918 - 1919 | 2 | |
| Orth, Frk., | Frk. Orth | Actor | 1918 | 2 | |
| Opitz, Felicitas, | Felicitas Opitz | Actor | 1918 | 2 | |
| Otto-Morgenstern, Martina, | Martina Otto-Morgenstern | Actor | 1920 - 1921 | 2 | |
| Ott, Magdalena, | Magdalena Ott | Actor | 1919 | 2 | |
| Otto-Osmarr, Lili, | Lili Otto-Osmarr | Actor | 1920 | 2 | |
| Oldham, Michael, | Michael Oldham | Actor | 1942 | 2 | |
| Orska, Alina(?), | Alina(?) Orska | Actor | 1901 - 1903 | 2 | |
| Ostrowska, Franciszka, | Franciszka Ostrowska | Actor | 1910 - 1911 | 2 | |
| Orbakk, Dag Eirik, | Dag Eirik Orbakk | Actor | 1985 | 2 | |
| Opdan, Kristin Aafløy, | Kristin Aafløy Opdan | Actor | 1996 - 2013 | 2 | |
| Omland, Tone, | Tone Omland | Actor | 1996 - 2013 | 2 | |
| Onsaker, Maren K., | Maren K. Onsaker (Maren K. Onsaker) | Actor | 1998 | 2 | |
| Opdal, Karina, | Karina Opdal | Actor | 2000 | 2 | |
| Odden, Elise Brunstad, | Elise Brunstad Odden | Actor | 2002 | 2 | |
| Offord, Sverre, | Sverre Offord | Actor | 2002 | 2 | |
| Opsahl, Linda, | Linda Opsahl | Actor | 2002 | 2 | |
| Oldani, Emilia, | Emilia Oldani | Actor | 2006 | 2 | |
| Olsen, Kim, | Kim Olsen | Actor | 2011 - 2019 | 2 | |
| Oborotov, Yuri, | Yuri Oborotov | Actor | 2012 | 2 | |
| Olstad, Andrea, | Andrea Olstad | Actor | 2012 | 2 | |
| Oftedal, Stian, | Stian Oftedal | Actor | 2012 | 2 | |
| Ozols, Jānis, | Jānis Ozols | Actor | 1915 | 2 | |
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