| Jasiński, Adam, | Adam Jasiński | Actor | 1903 - 1907 | 3 | |
| Jurkiewicz, Franciszek, | Franciszek Jurkiewicz | Actor | 1904 | 1 | |
| Jaranov, Atanas, | Atanas Jaranov | Translator | 1904 - 1905 | 2 | |
| Jacobsen, Mathea, | Mathea Jacobsen | Actor | 1904 - 1905 | 6 | |
| James, Charles, | Charles James | Actor | 1905 | 1 | |
| Javorčák, Josef, | Josef Javorčák | Director | 1905 | 1 | |
| Jones, -, | - Jones | Actor | 1905 | 1 | |
| Jarman, Herbert, | Herbert Jarman | Producer | 1906 | 1 | |
| Jabločkina, A., | A. Jabločkina | Actor | 1906 | 1 | |
| Johnson, Mr., | Mr. Johnson | Actor | 1906 | 1 | |
| Johansson, Anna, | Anna Johansson | Actor | 1906 | 1 | |
| Jocelyn, Jarvis, | Jarvis Jocelyn | Actor | 1907 | 1 | |
| Jabłoński, Henryk, | Henryk Jabłoński | Actor | 1907 | 1 | |
| Jasieński, Stanisław, | Stanisław Jasieński | Designer | 1907 - 1911 | 3 | |
| Jičinský, Karel, | Karel Jičinský | Actor, Director | 1908 - 1922 | 7 | |
| Javárek, Václav, | Václav Javárek | Actor | 1908 | 1 | |
| Javárková, Terezie, | Terezie Javárková | Actor | 1908 | 1 | |
| Jónsson, Þórarinn, | Þórarinn Jónsson | Actor | 1908 | 1 | |
| Jónsson, Jónas H., | Jónas H. Jónsson (Jónas H. Jónsson) | Actor | 1908 | 1 | |
| Jēkabs, Līgotņu, | Līgotņu Jēkabs | Translator | 1908 - 1909 | 2 | |
| Johnsson, Sigfrid, | Sigfrid Johnsson | Translator | 1908 | 1 | |
| James, Louis, | Louis James | Actor, Director | 1908 - 1909 | 28 | |
| James, Aphie, | Aphie James | Actor | 1908 | 1 | |
| Jewel, Alden, | Alden Jewel | Actor | 1908 | 1 | |
| Judik, Etel B., | Etel B. Judik (Etel B. Judik) | Actor | 1908 | 1 | |
| Janev, Hristo, | Hristo Janev | Actor | 1908 - 1909 | 2 | |
| John, Alice, | Alice John | Actor | 1908 - 1940 | 5 | |
| Janecka, Janina, | Janina Janecka | Actor | 1908 - 1909 | 2 | |
| Jessen, Gerhard, | Gerhard Jessen | Actor | 1909 - 1926 | 3 | |
| Jessen, Jakoba, | Jakoba Jessen | Actor | 1909 | 1 | |
| Joachim, W.B., | W. B. Joachim (W.B. Joachim) | Actor | 1909 | 2 | |
| Janiczówna, Janina, | Janina Janiczówna | Actor | 1909 - 1910 | 2 | |
| Johannesen, Sigvald, | Sigvald Johannesen | Actor | 1909 | 49 | |
| Jankov, Nedelju, | Nedelju Jankov | Actor | 1909 | 1 | |
| Jēkabsons, Kārlis, | Kārlis Jēkabsons | Translator | 1910 | 1 | |
| Johannisson, Nils, | Nils Johannisson | Actor | 1910 - 1940 | 4 | |
| Jarocka, Jadwiga (?), | Jadwiga (?) Jarocka | Actor | 1910 | 1 | |
| Jarszewska, Wanda, | Wanda Jarszewska | Actor | 1910 - 1919 | 5 | |
| Johansson, Carina M., | Carina M. Johansson (Carina M. Johansson) | Actor | 1990 | 1 | |
| Johansen, Tore, | Tore Johansen | Actor | 1990 - 1992 | 2 | |
| Jacobsen, Pia, | Pia Jacobsen | Actor | 1990 | 1 | |
| Johnsen, Kai, | Kai Johnsen | Adaptation, Director, Dramaturg, Lighting Designer | 1990 - 2016 | 16 | |
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