| Olivari, Michela | Michela Olivari | Actor | 2018 | 1 | |
| Ornaghi, Simona | Simona Ornaghi | Lighting Designer | 2018 | 2 | |
| O’Leary, Helen | Helen O’Leary | Actor | 2018 | 1 | |
| Osazuwa, Evelyn, Rasmussen | Evelyn Rasmussen Osazuwa | Actor, Composer | 2018 - 2019 | 4 | |
| Ocina, Gabriel | Gabriel Ocina | Actor | 2018 - 2020 | 2 | |
| O'Gara, Penn | Penn O'Gara | Costume Designer | 2019 | 1 | |
| Okonkwo, Noble | Noble Okonkwo | Actor | 2019 | 1 | |
| Ortega, Manuel | Manuel Ortega | Actor | 2019 | 1 | |
| Occhiogrosso, Anne | Anne Occhiogrosso | Director | 2019 | 1 | |
| Oliver, Sarah, M. | Sarah M. Oliver | Costume Designer | 2019 | 1 | |
| Omar, Gumrah | Gumrah Omar | Director | 2019 | 1 | |
| Obrezkov, Maksim | Maksim Obrezkov | Designer | 2019 | 1 | |
| Odom, Hunter | Hunter Odom | Actor | 2019 | 1 | |
| Omidi, Elena | Elena Omidi | Actor | 2019 | 1 | |
| Odağ, Efsane | Efsane Odağ | Assistant Director | 2019 | 1 | |
| O'Brian, Vana | Vana O'Brian | Actor | 2019 | 1 | |
| Orlandelli, Paolo | Paolo Orlandelli | Assistant Director | 2019 | 1 | |
| Olmedo, Christian | Christian Olmedo | Actor | 2019 - 2020 | 2 | |
| Oron, Tamar | Tamar Oron | Actor | 2020 | 2 | |
| Ondeck, Chris | Chris Ondeck | Actor | 2020 | 1 | |
| Ortman, Anders | Anders Ortman | Composer | 2020 | 5 | |
| Olsen, Kim, Jøran | Kim Jøran Olsen | Actor | 2020 | 1 | |
| Ose, Victoria | Victoria Ose | Actor | 2020 | 2 | |
| Ostrovskaja, Ljubov' | Ljubov' Ostrovskaja | Actor | 2020 | 1 | |
| Odeen-Isbister, Sara | Sara Odeen-Isbister | Actor, Adaptation | 2020 | 2 | |
| Olshin, Abigail | Abigail Olshin | Actor | 2020 | 1 | |
| Ozeran, Sergey | Sergey Ozeran | Lighting Designer | 2020 | 1 | |
| Ovodok, Vladimir | Vladimir Ovodok | Conductor | 2020 | 1 | |
| Ortiz, Janine | Janine Ortiz | Dramaturg | 2020 | 1 | |
| Oliver, Meagan J. | Meagan J. Oliver | Actor | 2020 | 1 | |
| O’Rourke, Rylee | Rylee O’Rourke | Assistant Director, Producer | 2020 - 2022 | 2 | |
| Okafor, Amaka | Amaka Okafor | Actor | 2020 - 2023 | 2 | |
| Ouzeau, Bruno | Bruno Ouzeau | Actor | 2020 - 2023 | 2 | |
| Olafsson, Emil | Emil Olafsson | Actor | 2020 - 2024 | 2 | |
| Odle, Cliff | Cliff Odle | Actor | 2021 | 1 | |
| Oakley, Martin | Martin Oakley | Lighting Designer | 2021 | 1 | |
| O'Kane, John | John O'Kane | Actor | 2021 | 1 | |
| Orlando, Carlo | Carlo Orlando | Assistant Director | 2021 | 3 | |
| Osokin, Evgeny | Evgeny Osokin (Евгений Осокин) | Actor | 2021 | 1 | |
| Owen, Dan | Dan Owen | Actor | 2021 | 1 | |
| Ozden, Zeynep | Zeynep Ozden | Actor | 2021 | 1 | |
| Otieno, Mercy Dorcas | Mercy Dorcas Otieno | Actor | 2021 | 2 | |
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