| Name | Functions | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Iñaki Otxoa | Actor | 1987 | 1 | |||
| Amaka Okafor | Actor | 2020 | 1 | |||
| Hugh O'Connor | Designer | 2014 | 1 | |||
| Oyin Oladejo | Actor | 2016 | 1 | |||
| Kim Jøran Olsen | Actor | 2020 | 1 | |||
| Nadežda Osipova | Designer | 2016 | 1 | |||
| Artur Oščepkov | Choreographer | 2013 | 1 | |||
| Ljubov' Ostrovskaja | Actor | 2020 | 1 | |||
| Hossein Omidi | Actor | 2013 | 1 | |||
| Mohammad Omrani | Actor | 2006 | 1 | |||
| Elena Omidi | Actor | 2019 | 1 | |||
| Bruno Ouzeau | Actor | 2020 | 1 | |||
| Emil Olafsson | Actor | 2020 | 1 | |||
| Efsane Odağ | Assistant Director | 2019 | 1 | |||
| Luka Omoto | Actor | 2006 | 1 | |||
| Gerti Obert | Actor | 1935 | 1 | |||
| Abigail Olshin | Actor | 2020 | 1 | |||
| Akitsu Orii | Musician | 2013 | 1 | |||
| Antoine Oppenheim | Director | 2017 | 1 | |||
| Gérard Olivier | Actor | 2016 | 1 | |||
| Cliff Odle | Actor | 2021 | 1 | |||
| Nicole O'Donohue | Producer | 2015 | 1 | |||
| Bruce Odland | Composer | 2013 | 1 | |||
| Astrid Overå | Actor | 2009 | 1 | |||
| Frank Oberhäußer | Assistant Director | 2006 | 1 | |||
| Martin Oakley | Lighting Designer | 2021 | 1 | |||
| Tracy Oleinick | Costume Designer | 1 | ||||
| Chris Ohnemus | Dramaturg | 1999 - 2000 | 2 | |||
| Pepi Oikonomopoulou | Adaptation, Director | 2006 | 2 | |||
| (Nuna) Młodziejowska Olchowska | Actor | 1905 - 1907 | 2 | |||
| Gunnar Ollén | Adaptation | 1947 - 2005 | 2 | |||
| Odin Hørthe Omdal | Actor | 1995 - 1999 | 2 | |||
| Isella Orchis | Actor | 1993 | 2 | |||
| Alex Organ | Actor, Sound Designer | 2002 | 2 | |||
| Si Osborne | Actor | 2001 | 2 | |||
| Leni Osswald | Costume Designer | 1955 - 1962 | 2 | |||
| Christine Ostermayer | Actor | 1965 - 1969 | 2 | |||
| Axsel Oswald | Actor | 1936 - 1937 | 2 | |||
| Miranda Otto | Actor | 2002 - 2015 | 2 | |||
| Georges Ourth | Actor, Director | 1978 - 1984 | 2 | |||
| Tytti Oittinen | Director | 1992 - 1994 | 2 | |||
| - Osterberger | Actor | 1971 | 2 | |||