| Treutler, Ludwig | Ludwig Treutler | Director | 1893 | 1 | |
| Treutler, Malgorzata | Malgorzata Treutler | Designer | 1973 - 1989 | 2 | |
| Treutler, Toni | Toni Treutler | Actor | 1928 - 1938 | 6 | |
| Trevelyan, James | James Trevelyan | Actor | 1987 | 1 | |
| Treves, E. | E. Treves | Actor | 1892 - 1893 | 3 | |
| Trevett, Kea | Kea Trevett | Actor | 2016 | 1 | |
| Trevino, Carmen | Carmen Trevino | Actor | 2008 | 1 | |
| Treviño, Christopher | Christopher Treviño | Lighting Designer | 2006 | 1 | |
| Treviño, Mariana | Mariana Treviño | Actor | 2006 | 14 | |
| Trevisi, Franco | Franco Trevisi | Actor | 1981 - 1982 | 8 | |
| Trevisi, Graziano | Graziano Trevisi | Actor | 1998 | 1 | |
| Trevor, Ann | Ann Trevor | Actor | 1928 | 1 | 1 |
| Trevor, Austin | Austin Trevor | Actor | 1922 - 1939 | 4 | |
| Trevor, Edward | Edward Trevor | Actor | 1936 | 3 | |
| Trevor, John V. | John V. Trevor | Actor | 1928 - 1936 | 3 | |
| Trevor, Norman | Norman Trevor | Actor | 1911 | 1 | |
| Treβler, Otto | Otto Treβler | Actor | 1956 | 1 | |
| Triador, Jorge | Jorge Triador | Actor | 1954 - 1976 | 3 | |
| Triana, Gisella | Gisella Triana | Actor | 1989 | 1 | |
| Triana, Rafael | Rafael Triana | Costume Designer, Designer | 2013 | 2 | |
| Triantafillou, Brando | Brando Triantafillou | Composer, Sound Designer | 2018 | 2 | |
| Triantafyllidi, Angeliki | Angeliki Triantafyllidi | Actor, Director | 1973 - 1974 | 5 | |
| Triantafyllou, Lina | Lina Triantafyllou | Actor | 1973 - 1974 | 3 | |
| Triantis, S. | S. Triantis | Actor | 1935 | 1 | |
| Tribe, Andrew | Andrew Tribe | Actor | 2008 | 1 | |
| Tribouilloy, Brigitte | Brigitte Tribouilloy | Costume Designer | 2003 - 2019 | 22 | |
| Tribušon, Matjaž | Matjaž Tribušon | Actor | 1986 - 2015 | 2 | |
| Tricamo, Antonio | Antonio Tricamo | Actor | 2010 | 1 | |
| Trichas, Spyridon | Spyridon Trichas | Actor | 1905 | 1 | |
| Triches, Marco | Marco Triches | Actor | 2018 | 2 | |
| Triebel, Eva | Eva Triebel | Actor | 1962 | 2 | |
| Triebel, Jördis | Jördis Triebel | Actor | 2002 | 2 | |
| Triebl, Berta | Berta Triebl | Actor | 1903 | 1 | |
| Triebl, Joseph | Joseph Triebl | Actor | 1898 | 1 | |
| Triebner, Arthur | Arthur Triebner | Actor | 1905 | 1 | |
| Trieder, Jan | Jan Trieder | Musical Director | 1988 | 1 | |
| Trienekens, Elvira | Elvira Trienekens | Costume Designer, Designer | 1997 | 2 | |
| Trier, Charlotte | Charlotte Trier | Actor | 1993 | 1 | |
| Trier, Ludmilla | Ludmilla Trier | Actor | 1903 | 1 | |
| Trierweiler, Bailey | Bailey Trierweiler | Sound Designer | 2017 | 1 | |
| Triesch, Irene | Irene Triesch | Actor, Director | 1894 - 1933 | 110 | 1 |
| Triestino, Paolo | Paolo Triestino | Actor | 1985 | 1 | |
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