| Name | Functions  | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Heinrich Oppermann | Actor | 1895 - 1925 | 13 | |||
| Teresina Oster | Actor | 1906 - 1909 | 4 | |||
| James O'Reilly | Actor | 1981 | 2 | |||
| Alessia Olivetti | Actor | 2008 - 2011 | 4 | |||
| Ole Andreas Olsen | Actor | 1859 | 1 | |||
| Frk. Olsen | Actor | 1874 - 1876 | 5 | |||
| Julius Olbrich | Actor | 1876 - 1910 | 16 | |||
| Rosa Otto-Martineck | Actor | 1876 | 1 | |||
| Bror Olsson | Actor | 1877 - 1928 | 20 | 1 | ||
| - Olsen | Actor | 1883 | 1 | |||
| Hans Orlamundt | Actor | 1877 - 1880 | 13 | 1 | ||
| Hans Leonard Ottomeyer | Actor | 1878 | 1 | |||
| Erik Ohlsson | Actor | 1878 - 1883 | 8 | |||
| Mr. Oppmar | Actor | 1879 | 1 | |||
| Van Offel-Kley | Actor | 1880 | 1 | |||
| - Ohlson | Actor | 1882 | 1 | |||
| Ludvig Otterström | Actor | 1883 - 1885 | 10 | |||
| Olaus Olsen | Actor | 1884 - 1904 | 45 | 2 | ||
| Rasmus Ottesen | Actor | 1902 - 1926 | 18 | |||
| Mr. Olsson | Actor | 1886 | 1 | |||
| - Olander | Actor | 1887 | 1 | |||
| Anna Oeser | Actor | 1888 | 1 | |||
| Mr. Ott | Actor | 1889 | 2 | |||
| Thomas Oberle | Actor | 1891 - 1904 | 2 | |||
| J. L. Ottomeyer | Actor | 1891 | 1 | |||
| Teodor Olchowny | Actor | 1891 | 1 | |||
| Stanisław Olszewski | Actor | 1892 | 1 | |||
| Irmgard Olbrich | Actor | 1893 - 1901 | 2 | |||
| Mr. Onorato | Actor | 1893 | 2 | |||
| Albert Olander | Actor | 1893 | 2 | |||
| Hermann Orlop | Actor | 1893 | 1 | |||
| Georg Oppel | Actor | 1893 - 1926 | 9 | |||
| Olive Oliver | Actor | 1894 - 1904 | 2 | 1 | ||
| Edward Olszewski | Actor | 1894 - 1902 | 3 | |||
| Otto Oßmann | Actor | 1894 | 1 | |||
| Hans Olden | Actor | 1895 | 1 | 1 | ||
| Siegfrid Oberndorfer | Actor | 1896 | 1 | |||
| M. Ouvrier | Actor | 1896 | 1 | |||
| Heinrich Otto | Actor | 1896 | 1 | |||
| Susanne Osten | Actor | 1919 | 1 | |||
| Mr. Opel | Actor | 1898 | 1 | |||
| Mr. Ockert | Actor | 1898 - 1900 | 2 | |||