Name  | Functions | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Alice Orr-Ewing | Actor | 2016 | 1 | |||
| Hiram Alexander Orozco | Costume Designer | 2016 | 1 | |||
| Carolina Orozco | Actor | 2022 | 1 | |||
| Helga Orosz | Actor | 2005 | 2 | |||
| Cristian Oroșanu | Conductor | 2012 | 1 | |||
| Tamar Oron | Actor | 2020 | 2 | |||
| Michael Ornstein | Actor | 2000 | 1 | |||
| Brigitte Ornstein | Actor | 1968 | 1 | |||
| Margit Orning | Actor | 1931 | 1 | |||
| Ota Ornest | Actor | 1946 | 1 | |||
| Jiří Ornest | Actor | 1988 - 2012 | 2 | |||
| Otto Ornelli | Choreographer | 1938 | 1 | |||
| David Orneallas | Actor | 2011 | 1 | |||
| Robert Ornbo | Lighting Designer | 1978 - 1987 | 2 | |||
| Gustaf Hiort af Ornäs | Actor | 1956 | 1 | |||
| Marie Ormset | Actor | 2002 | 3 | |||
| Robert Ormsby | Actor | 1991 | 1 | |||
| Eugene Ormonde | Actor | 1900 - 1904 | 4 | |||
| Margarethe Ormond | Actor | 1900 - 1901 | 2 | |||
| Claire Ormond | Actor | 1993 | 1 | |||
| Nick Ormerod | Designer | 1990 | 1 | |||
| Ben Ormerod | Lighting Designer | 1994 - 2007 | 41 | |||
| Michael Orme | Director, Producer | 1930 - 1936 | 5 | |||
| Helen Ormbee | Actor | 1904 | 1 | |||
| Yvonne Orly | Actor | 1935 | 2 | |||
| Tadeusz Orlowicz | Designer | 1964 | 1 | |||
| Claudia Orlovsky | Choreographer | 1998 | 1 | |||
| Milan Orlović | Actor | 1933 | 1 | |||
| Mara Orlović | Actor | 1933 | 1 | |||
| Olga Orlova | Actor | 1933 | 1 | |||
| Lubov Orlova | Actor | 1959 | 1 | |||
| Elena Ju. Orlova | Costume Designer | 2008 - 2011 | 2 | |||
| Igorj Orlov | Actor | 2011 | 1 | |||
| Aleksandr Orlov | Actor | 2000 | 1 | |||
| Hermann Orlop | Actor | 1893 | 1 | |||
| Penny Orloff | Actor | 1982 | 1 | |||
| Nicholas Orloff | Actor | 1908 | 1 | |||
| Ida Orloff | Actor | 1905 - 1942 | 26 | |||
| Walter Orlinsky | Actor | 1963 | 1 | |||
| Janusz Orliński | Actor | 1904 - 1916 | 9 | |||
| Janusz Orliński | Actor | 1903 - 1909 | 4 | |||
| Bolesław Orliński | Actor | 1923 | 1 | |||