| Olafson, Anne | Anne Olafson | Actor | 2012 | 1 | |
| Olafsen, Carl Fredrik | Carl Fredrik Olafsen | Director | 2010 | 1 | |
| Olafsdottir, Karin | Karin Olafsdottir | Actor | 1957 | 1 | |
| Oladejo, Oyin | Oyin Oladejo | Actor | 2016 | 1 | |
| Ol'čeva, M. | M. Ol'čeva | Actor | 1900 - 1924 | 6 | |
| Okura, Shonosuke | Shonosuke Okura | Actor | 2005 - 2013 | 14 | |
| Okuněv, Alexej | Alexej Okuněv | Actor | 1984 | 1 | |
| Okun, Alexander | Alexander Okun | Designer | 1992 - 2003 | 3 | 1 |
| Okukawa, Koji | Koji Okukawa | Actor | 2008 - 2010 | 5 | |
| Okubo, Ryoichi | Ryoichi Okubo | Actor | 2008 | 1 | |
| Oktav, Burcu | Burcu Oktav | Actor | 2017 | 1 | |
| Okraska, Paweł | Paweł Okraska | Actor | 1999 | 1 | |
| Okpokwasili, Okwui | Okwui Okpokwasili | Actor | 2003 - 2010 | 3 | 1 |
| Okoro, Nija | Nija Okoro | Actor | 2017 | 1 | |
| Okornicki, Kazimierz | Kazimierz Okornicki | Actor, Director | 1908 - 1922 | 7 | |
| Okornicka (Miłosz), Helena | Helena Okornicka (Miłosz) | Actor | 1916 | 1 | |
| Okopiński, Marek | Marek Okopiński | Actor | 1958 | 1 | |
| Okonkwo, Noble | Noble Okonkwo | Actor | 2019 | 1 | |
| Okoli, Ngozi | Ngozi Okoli | Actor | 2002 | 1 | |
| Okkola, Helena | Helena Okkola | Actor | 1998 | 3 | |
| Okking, Jens | Jens Okking | Actor | 1979 - 1984 | 4 | 1 |
| Okkerse, Nico | Nico Okkerse | Actor | 1987 | 1 | |
| Okito, Takashi | Takashi Okito | Actor | 2016 - 2018 | 4 | |
| Okin, Matt | Matt Okin | Director | 2023 | 1 | |
| Okhlupin, Igor | Igor Okhlupin (Игорь Охлупин) | Actor | 2013 | 1 | |
| Okehurst, Katie | Katie Okehurst | Actor | 2022 | 1 | |
| Okazaki, Tomomi | Tomomi Okazaki | Actor | 1967 | 1 | |
| Okazaki, Shinobu | Shinobu Okazaki | Designer | 1991 | 1 | |
| Okazaki, Satsuki | Satsuki Okazaki | Actor | 2017 | 4 | |
| Okazaki, Koji | Koji Okazaki | Designer | 1999 | 1 | |
| Okazaki, Kazuhiko | Kazuhiko Okazaki | Actor | 2002 | 1 | |
| Okawa, Tamaki | Tamaki Okawa (Ōkawa Tamaki / 大川珠季) | Dramaturg, Translator | 2024 | 2 | |
| Okano, Kazuo | Kazuo Okano | Translator | 1959 | 1 | |
| Okamura, Fumio | Fumio Okamura | Actor | 1923 | 1 | |
| Okamura, Akemi | Akemi Okamura | Dramaturg | 2013 | 1 | |
| Okamoto, Kennichi | Kennichi Okamoto | Actor | 1990 | 1 | |
| Okakura, Shiro | Shiro Okakura | Director | 1953 | 1 | |
| Okajima, Yuki | Yuki Okajima | Lighting Designer | 2014 | 1 | |
| Okafor, Stella O | Stella O Okafor | Dancer | 2002 | 1 | |
| Okafor, Stella C | Stella C Okafor | Dancer | 2002 | 1 | |
| Okafor, Stella | Stella Okafor | Lighting Designer | 2009 | 1 | |
| Okafor, Kosy | Kosy Okafor | Actor | 2002 | 1 | |
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