| Name | Functions | Event Dates  | Events | Resources | ||
|---|---|---|---|---|---|---|
| Vilhelm Olin | Actor, Director | 1886 - 1919 | 4 | 1 | ||
| - Olander | Actor | 1887 | 1 | |||
| Anna Oeser | Actor | 1888 | 1 | |||
| Mr. Ott | Actor | 1889 | 2 | |||
| Gisela Ott | Actor | 1889 | 1 | |||
| Heinrich Oppel | Actor | 1889 | 2 | |||
| Wilhelm Otto | Actor | 1889 - 1898 | 5 | |||
| Pēteris Ozoliņš | Actor, Director | 1889 - 1912 | 5 | |||
| Otto Osmarr | Actor, Director | 1889 - 1919 | 23 | |||
| Emil von Osten | Actor | 1890 | 1 | |||
| J. L. Ottomeyer | Actor | 1891 | 1 | |||
| Teodor Olchowny | Actor | 1891 | 1 | |||
| Heinrich Oberländer | Actor | 1891 | 1 | |||
| Alexander Ottepp | Actor | 1891 | 1 | |||
| C. Orlandini | Actor | 1891 - 1892 | 3 | |||
| Leonard Outram | Actor, Director | 1891 - 1897 | 7 | 1 | ||
| Thomas Oberle | Actor | 1891 - 1904 | 2 | |||
| Stanisław Olszewski | Actor | 1892 | 1 | |||
| Leo Orlandini | Actor | 1892 - 1924 | 12 | |||
| Mr. Onorato | Actor | 1893 | 2 | |||
| Albert Olander | Actor | 1893 | 2 | |||
| Hermann Orlop | Actor | 1893 | 1 | |||
| Mr. Oliva | Actor | 1893 | 1 | |||
| Irmgard Olbrich | Actor | 1893 - 1901 | 2 | |||
| Georg Oppel | Actor | 1893 - 1926 | 9 | |||
| Fritz Odemar | Actor, Director | 1893 - 1934 | 5 | |||
| Helene Odilon | Actor | 1894 | 1 | |||
| Otto Oßmann | Actor | 1894 | 1 | |||
| Edward Olszewski | Actor | 1894 - 1902 | 3 | |||
| Olive Oliver | Actor | 1894 - 1904 | 2 | 1 | ||
| O. Orling | Designer | 1895 | 2 | |||
| Hans Olden | Actor | 1895 | 1 | 1 | ||
| E. Orling | Designer | 1895 - 1896 | 6 | |||
| Ole Olsen | Actor, Composer | 1895 - 1922 | 18 | 2 | ||
| Heinrich Oppermann | Actor | 1895 - 1925 | 13 | |||
| Siegfrid Oberndorfer | Actor | 1896 | 1 | |||
| M. Ouvrier | Actor | 1896 | 1 | |||
| Heinrich Otto | Actor | 1896 | 1 | |||
| Gustav Olmar | Actor | 1896 | 1 | |||
| Harald Otto | Actor, Director | 1896 - 1922 | 55 | 1 | ||
| Breitner og Bauer | Designer | 1897 | 1 | |||
| Mr. Opel | Actor | 1898 | 1 | |||