| Name | Functions | Event Dates  | Events | Resources | ||
|---|---|---|---|---|---|---|
| Julius Otto | Actor | 1880 - 1898 | 6 | |||
| Karl Ott | Actor | 1880 - 1893 | 3 | |||
| Van Offel-Kley | Actor | 1880 | 1 | |||
| Jacques Offenbach | Composer | 1880 | 1 | |||
| Charles Oberthür | Composer | 1880 | 1 | |||
| Frk. Olbers | Actor | 1880 | 1 | |||
| Mr. Oppmar | Actor | 1879 | 1 | |||
| Erik Ohlsson | Actor | 1878 - 1883 | 8 | |||
| Hans Leonard Ottomeyer | Actor | 1878 | 1 | |||
| Herr Otto | Actor, Director | 1878 | 2 | |||
| Bror Olsson | Actor | 1877 - 1928 | 20 | 1 | ||
| Inga Olsen | Actor | 1877 - 1908 | 101 | 1 | ||
| Hans Orlamundt | Actor | 1877 - 1880 | 13 | 1 | ||
| Julius Olbrich | Actor | 1876 - 1910 | 16 | |||
| Otto Ottbert | Actor, Director | 1876 - 1906 | 7 | |||
| Rosa Otto-Martineck | Actor | 1876 | 1 | |||
| Frk. Olsen | Actor | 1874 - 1876 | 5 | |||
| Ole Andreas Olsen | Actor | 1859 | 1 | |||
| Gertrude Obzyna | ||||||
| Het Oranjehotel | ||||||
| Kry ova | ||||||
| Luk! ov! | ||||||
| Olga Ovtsjinnikova | ||||||
| Edyta Olszówka | ||||||
| Aune Ollila | ||||||
| Aras Obed | ||||||
| A. Obuhov | ||||||
| Antonio Ole | 1 | |||||
| Lena Obst | 5 | |||||
| Craig OʼRegan | 3 | |||||
| Alireza Oliai | ||||||
| Monica Ohlson | 1 | |||||
| Tracy Oleinick | Costume Designer | 1 | ||||
| Nicolas Oubraham | ||||||
| Héctor Di Oliboni | Adaptation, Director | 2 | ||||
| Banana Orange | ||||||
| Banana Orange | ||||||