| Okornicki, Kazimierz | Kazimierz Okornicki (Kazimierz Okornicki) | Actor, Director | 1908 - 1922 | 7 | |
| Okoro, Nija | Nija Okoro | Actor | 2017 | 1 | |
| Okpokwasili, Okwui | Okwui Okpokwasili | Actor | 2003 - 2010 | 3 | |
| Okraska, Paweł | Paweł Okraska (Paweł Okraska) | Actor | 1999 | 1 | |
| Oktav, Burcu | Burcu Oktav (Burcu Oktav) | Actor | 2017 | 1 | |
| Okubo, Ryoichi | Ryoichi Okubo | Actor | 2008 | 1 | |
| Okukawa, Koji | Koji Okukawa | Actor | 2008 - 2010 | 5 | |
| Okun, Alexander | Alexander Okun (Alexander Okun) | Designer | 1992 - 2003 | 3 | |
| Okuněv, Alexej | Alexej Okuněv | Actor | 1984 | 1 | |
| Okura, Shonosuke | Shonosuke Okura (Shonosuke Okura) | Actor | 2005 - 2013 | 14 | |
| Ol'čeva, M. | M. Ol'čeva (M. Ol'čeva) | Actor | 1900 - 1924 | 6 | |
| Oladejo, Oyin | Oyin Oladejo | Actor | 2016 | 1 | |
| Olafsdottir, Karin | Karin Olafsdottir | Actor | 1957 | 1 | |
| Olafsen, Carl Fredrik | Carl Fredrik Olafsen (Carl Fredrik Olafsen) | Director | 2010 | 1 | |
| Olafson, Anne | Anne Olafson | Actor | 2012 | 1 | |
| Olafsson, Emil | Emil Olafsson | Actor | 2020 | 1 | |
| Oláh, Vilmos | Vilmos Oláh | Actor | 1988 | 1 | |
| Oland, Warner | Warner Oland (Warner Oland) | Actor | 1906 - 1908 | 5 | |
| Olander, - | - Olander (- Olander) | Actor | 1887 | 1 | |
| Olander, Albert | Albert Olander (Albert Olander) | Actor | 1893 | 2 | |
| Olander, Sigfrid | Sigfrid Olander (Sigfrid Olander) | Actor | 1920 | 1 | |
| Olarin (Olaru?), Mircea | Mircea Olarin (Olaru?) | Actor | 1956 | 1 | |
| Olariu, Dana | Dana Olariu | Actor | 2009 - 2015 | 3 | |
| Olariu, Stelian | Stelian Olariu | Conductor | 2007 | 1 | |
| Olárová, Renata | Renata Olárová | Actor | 1958 | 1 | |
| Olaru, Ion | Ion Olaru | Actor | 1970 | 1 | |
| Olaru, Orodel | Orodel Olaru | Actor | 2009 | 4 | |
| Olason, Ragnar | Ragnar Olason (Ragnar Olason) | Actor | 1956 - 1973 | 48 | |
| Olasz, Lajos | Lajos Olasz | Actor | 1936 | 1 | |
| Olasz, Pál | Pál Olasz (Pál Olasz) | Actor | 1906 - 1908 | 4 | |
| Olauson, Judith | Judith Olauson | Actor | 1984 | 1 | |
| Olaussen, Gunhild Mathea | Gunhild Mathea Olaussen (Gunhild Mathea Olaussen) | Actor | 1994 - 2000 | 14 | |
| Olaussen, Vidar | Vidar Olaussen (Vidar Olaussen) | Actor | 1999 - 2006 | 11 | |
| Olausson, Hilde | Hilde Olausson (Hilde Olausson) | Actor, Musician | 1985 - 2015 | 8 | 2 |
| Olbers, Frk. | Frk. Olbers | Actor | 1880 | 1 | |
| Olbertz, Martin | Martin Olbertz | Actor | 1997 | 1 | |
| Olbrich, Irmgard | Irmgard Olbrich (Irmgard Olbrich) | Actor | 1893 - 1901 | 2 | |
| Olbrich, Julius | Julius Olbrich | Actor | 1876 - 1910 | 16 | |
| Olbrück, Robert | Robert Olbrück | Actor | 1983 | 1 | |
| Olćan, Olga | Olga Olćan | Actor | 2011 | 2 | |
| Olcay, Emin | Emin Olcay (Emin Olcay) | Actor | 1987 | 1 | |
| Olchowny, Teodor | Teodor Olchowny (Teodor Olchowny) | Actor | 1891 | 1 | |
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