Name  | Functions | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Mr. Oliva | Actor | 1893 | 1 | |||
| Paul Olisah | Actor, Designer | 2002 | 2 | |||
| Thomas Olinger | Actor | 1934 | 1 | |||
| T. Lawrence Olinger | Actor | 1932 | 1 | |||
| Marc Olinger | Actor | 2003 | 2 | |||
| Boris Olinescu | Actor, Assistant Director | 1959 | 2 | |||
| Vilhelm Olin | Actor, Director | 1886 - 1919 | 4 | 1 | ||
| Kerstin Olin | Actor | 1953 | 2 | |||
| Brita Olin | Actor | 1936 | 1 | |||
| Anna Olin | Actor | 1919 | 1 | |||
| Jiří Olijnyk | Actor | 1969 | 1 | |||
| Huguette Oligny | Actor | 1996 | 1 | 1 | ||
| Kurt Oligmüller | Actor | 1961 | 1 | |||
| Luz Olier | Actor | 2016 | 8 | |||
| Zuzu Oliel | Actor | 2009 | 1 | |||
| Michael Olich | Costume Designer | 1992 | 1 | |||
| Héctor Di Oliboni | Adaptation, Director | 2 | ||||
| Alireza Oliai | ||||||
| Matúš Oľha | Director | 1993 | 1 | |||
| Magda Olgyai | Actor | 1983 | 1 | |||
| Ninna Olesen | Costume Designer | 2008 | 1 | |||
| Maggie Olesen | Actor | 1971 | 1 | |||
| Kirsten Olesen | Actor | 1978 - 2011 | 12 | 2 | ||
| Henning Olesen | Actor | 1983 - 2010 | 3 | 1 | ||
| Marcin Oleś | Composer | 2006 - 2009 | 7 | |||
| Bartłomiej Brat Oleś | Composer | 2006 - 2009 | 7 | |||
| Ingeborg S. Olerud | Lighting Designer | 2008 - 2010 | 4 | |||
| E. Olenina | Dancer | 1999 - 2000 | 2 | |||
| B. Olenin | Actor | 1959 | 1 | |||
| Manfred Olenicki | Actor | 1995 - 1998 | 3 | |||
| Tom Oleniacz | Actor | 1990 | 1 | |||
| Nnandi Olekwara | Actor | 2002 | 1 | |||
| Silvia Oleksikiw | Producer | 2022 | 1 | |||
| Peter Olejár | Actor | 2012 | 2 | |||
| Tracy Oleinick | Costume Designer | 1 | ||||
| Antonio Ole | 1 | |||||
| David Oldman | Designer | 1996 | 1 | |||
| Lilian Oldland | Actor | 1925 | 1 | |||
| Francesca Olding | Actor | 1980 | 3 | |||
| Federico Olding | Actor | 1980 | 3 | |||
| Millicent Oldham | Actor | 1951 | 1 | |||
| Michael Oldham | Actor | 1942 - 1948 | 2 | |||