| O'Brien, Meredith | Meredith O'Brien | Actor | 2022 | 1 | |
| Ooi, Mike | Mike Ooi | Actor | 2022 | 1 | |
| Ortiz, Carolina | Carolina Ortiz | Lighting Designer | 2022 | 1 | |
| Ošavkova, Sonja | Sonja Ošavkova (Соња Ошавкова) | Actor | 2013 | 1 | |
| Osmani, Blerim | Blerim Osmani (Блерим Османи) | Musician | 2022 | 1 | |
| Olivar, Mr | Mr Olivar | Actor | 1900 | 2 | |
| Ouisem, Abdellaoui | Abdellaoui Ouisem | Actor | 2022 | 1 | |
| Oteyza, Ramón | Ramón Oteyza | Actor | 1975 | 1 | |
| Olier, Luz | Luz Olier | Actor | 2016 | 8 | |
| Olteanu , Stefan | Stefan Olteanu | Actor | 2022 | 1 | |
| Oliva, Mr. | Mr. Oliva | Actor | 1893 | 1 | |
| Ochoa, José | José Ochoa | Adaptation, Director | 1974 - 1975 | 10 | |
| Ocano, Armando | Armando Ocano | Adaptation | 1975 - 1980 | 5 | |
| Orjas, José | José Orjas | Actor | 1968 | 1 | |
| Olsson, Erik | Erik Olsson | Actor | 2022 | 1 | |
| O’Connor, Francis | Francis O’Connor | Set Designer | 2023 | 1 | |
| O’Clery, Joan | Joan O’Clery | Costume Designer | 2023 | 1 | |
| Oen, Hermine Svortevik | Hermine Svortevik Oen | | | | |
| Odegaard, Elin | Elin Odegaard | Actor | 2023 | 1 | |
| Onaodowan, Okierite | Okierite Onaodowan | Actor | 2023 | 1 | |
| Occomore, Nye | Nye Occomore | Actor | 2023 | 1 | |
| O'Neil, Rebecca Pugh Parker | Rebecca Pugh Parker O'Neil | Actor | 2023 | 1 | |
| O'Brien, Denise | Denise O'Brien | Designer | 2023 | 1 | |
| Okin, Matt | Matt Okin | Director | 2023 | 1 | |
| Osokin, Evgeny | Evgeny Osokin (Евгений Осокин) | Actor | 2021 | 1 | |
| Ozeran, Sergey | Sergey Ozeran | Lighting Designer | 2020 | 1 | |
| Ovodok, Vladimir | Vladimir Ovodok | Conductor | 2020 | 1 | |
| Osako, Koji | Koji Osako (大迫浩二) | Lighting Designer | 2023 | 2 | |
| Okehurst, Katie | Katie Okehurst | Actor | 2022 | 1 | |
| Ordóñez, María | María Ordóñez | Actor | 2023 | 1 | |
| Owen, Dan | Dan Owen | Actor | 2021 | 1 | |
| Ozden, Zeynep | Zeynep Ozden | Actor | 2021 | 1 | |
| Oberton , Michael | Michael Oberton | Actor | 2023 | 1 | |
| Oliveira, Inês da Cruz | Inês da Cruz Oliveira | Actor | 2023 | 1 | |
| Oubraham, Nicolas | Nicolas Oubraham | | | | |
| Ortega, Ana Luna | Ana Luna Ortega | Video Designer | 2024 | 1 | |
| Ortiz, Janine | Janine Ortiz | Dramaturg | 2020 | 1 | |
| Oliver, Meagan J. | Meagan J. Oliver | Actor | 2020 | 1 | |
| O'Brian, Vana | Vana O'Brian | Actor | 2019 | 1 | |
| O'Leary, Pascal | Pascal O'Leary | Director | 2024 | 1 | |
| O'Sullivan, Rob | Rob O'Sullivan | Actor | 2024 | 1 | |
| O'Brien, Neal | Neal O'Brien | Actor | 2024 | 1 | |
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