| Obrecht, Urs | Urs Obrecht | Actor | 1991 | 1 | |
| Obregon, Gustavo | Gustavo Obregon | Actor | 2009 | 9 | |
| Obrenović, Tanja | Tanja Obrenović | Actor | 2011 | 1 | |
| Obreschkov, - | - Obreschkov | Actor | 1928 | 1 | |
| Obreschkov, Todor | Todor Obreschkov | Actor | 1910 | 1 | |
| Obrezkov, Maksim | Maksim Obrezkov | Designer | 2019 | 1 | |
| Obritzhauser, Andrea | Andrea Obritzhauser | Actor | 2004 | 1 | 1 |
| Obrtelová, Nora | Nora Obrtelová | Dramaturg | 2005 | 1 | |
| Obst, Angela | Angela Obst | Dramaturg | 2012 - 2014 | 2 | |
| Obst, Dietmar | Dietmar Obst | Actor | 1993 - 1999 | 2 | |
| Obst, Lena | Lena Obst | | | | 5 |
| Obstfelder, Helmut | Helmut Obstfelder | Designer | 1949 | 1 | |
| Obuch, Ladislav | Ladislav Obuch | Translator | 1955 - 2021 | 14 | 1 |
| Obuchová, L'ubica | L'ubica Obuchová | Costume Designer | 1985 | 1 | 1 |
| Obuchowicz, Bartek Kaminski | Bartek Kaminski Obuchowicz | Actor | 2005 | 1 | |
| Obuhov, A. | A. Obuhov | | | | |
| Obzina, Martin | Martin Obzina | Director | 1959 | 1 | |
| Obzyna, Gertrude | Gertrude Obzyna | | | | |
| Ocampo, Paul | Paul Ocampo | Actor, Dancer | 2001 | 2 | |
| Ocampo, Pavel | Pavel Ocampo | Musician | 2006 | 2 | |
| Ocaña, Luis | Luis Ocaña | Producer | 1981 | 1 | |
| Ocano, Armando | Armando Ocano | Adaptation | 1975 - 1980 | 5 | |
| Ocaranza, Ruben | Ruben Ocaranza | Actor | 1962 | 1 | |
| Occhelli, P. | P. Occhelli | Designer | 1931 | 1 | |
| Occhini, Ilaria | Ilaria Occhini | Actor | 1981 - 2005 | 19 | 1 |
| Occhiogrosso, Anne | Anne Occhiogrosso | Director | 2019 | 1 | |
| Occomore, Nye | Nye Occomore | Actor | 2023 | 1 | |
| Ocel, Tim | Tim Ocel | Director | 2002 | 1 | |
| Ochandiano, Amelia | Amelia Ochandiano | Director | 2010 - 2011 | 40 | |
| Ochasi, Onyekachi | Onyekachi Ochasi | Actor | 2002 | 1 | |
| Ochlast, Jens | Jens Ochlast | Actor | 1993 - 2015 | 3 | |
| Ochoa, Diana | Diana Ochoa | Actor | 1964 | 1 | |
| Ochoa, José | José Ochoa | Adaptation, Director | 1974 - 1975 | 10 | |
| Ochránek, Marcel | Marcel Ochránek | Actor | 2007 - 2008 | 2 | |
| Ochsenbauer, Georg | Georg Ochsenbauer | Lighting Designer, Sound Designer | 2016 | 2 | |
| Ocina, Gabriel | Gabriel Ocina | Actor | 2012 | 1 | |
| Ocina, Gabriel | Gabriel Ocina | Actor | 2018 - 2020 | 2 | |
| Ockel, Reinhold | Reinhold Ockel | Designer, Director | 1927 - 1942 | 2 | |
| Ockel, Sigrid | Sigrid Ockel | Actor | 1962 | 1 | |
| Ockermüller, Heinz | Heinz Ockermüller | Designer | 1953 | 1 | |
| Ockert, Mr. | Mr. Ockert | Actor | 1898 - 1900 | 2 | |
| Ockert, Otto | Otto Ockert | Actor | 1899 | 1 | |
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