Name  | Functions | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Paolo Orlandelli | Assistant Director | 2019 | 1 | |||
| Dael Orlandersmith | Actor | 1993 | 1 | |||
| C. Orlandini | Actor | 1891 - 1892 | 3 | |||
| Claudio Orlandini | Director | 2011 | 1 | |||
| Leo Orlandini | Actor | 1892 - 1924 | 12 | |||
| Lia Orlandini | Actor | 1921 - 1922 | 5 | |||
| Carlo Orlando | Assistant Director | 2021 | 1 | |||
| Sabine Orléans | Actor | 1994 | 3 | |||
| Jed Orlemann | Actor | 2002 | 4 | |||
| Philipp Orlemann | Actor | 1961 | 1 | |||
| Alexej Orlenco | Actor | 2011 | 2 | |||
| Pavel Orlenev | Actor, Director | 1903 - 1923 | 14 | 1 | ||
| Ray Orley | Actor | 1965 | 1 | |||
| Axel Orlia | Mask Maker | 1993 | 1 | |||
| Stanisław Orlik | Actor | 1904 - 1924 | 4 | |||
| Wazlaw Orlikowsky | Adaptation, Choreographer, Director | 1956 | 3 | 1 | ||
| E. Orling | Designer | 1895 - 1896 | 6 | |||
| O. Orling | Designer | 1895 | 2 | |||
| Bolesław Orliński | Actor | 1923 | 1 | |||
| Janusz Orliński | Actor | 1904 - 1916 | 9 | |||
| Janusz Orliński | Actor | 1903 - 1909 | 4 | |||
| Walter Orlinsky | Actor | 1963 | 1 | |||
| Ida Orloff | Actor | 1905 - 1942 | 26 | |||
| Nicholas Orloff | Actor | 1908 | 1 | 1 | ||
| Penny Orloff | Actor | 1982 | 1 | |||
| Hermann Orlop | Actor | 1893 | 1 | |||
| Aleksandr Orlov | Actor | 2000 | 1 | |||
| Igorj Orlov | Actor | 2011 | 1 | |||
| Elena Ju. Orlova | Costume Designer | 2008 - 2011 | 2 | |||
| Lubov Orlova | Actor | 1959 | 1 | |||
| Olga Orlova | Actor | 1933 | 1 | |||
| Mara Orlović | Actor | 1933 | 1 | |||
| Milan Orlović | Actor | 1933 | 1 | |||
| Claudia Orlovsky | Choreographer | 1998 | 1 | |||
| Tadeusz Orlowicz | Designer | 1964 | 1 | |||
| Yvonne Orly | Actor | 1935 | 2 | |||
| Helen Ormbee | Actor | 1904 | 1 | |||
| Michael Orme | Director, Producer | 1930 - 1936 | 5 | |||
| Ben Ormerod | Lighting Designer | 1994 - 2007 | 41 | |||
| Nick Ormerod | Designer | 1990 | 1 | 1 | ||
| Claire Ormond | Actor | 1993 | 1 | |||
| Margarethe Ormond | Actor | 1900 - 1901 | 2 | |||