| Tool, Krista | Krista Tool | Designer | 1993 - 2004 | 2 | |
| Talmadge, Victor | Victor Talmadge | Actor | 1993 | 2 | |
| Tartaglia, Allison | Allison Tartaglia | Actor | 1993 | 1 | |
| Taylor, James | James Taylor | Designer, Lighting Designer | 1993 | 2 | |
| Tzatsos, Thanasis | Thanasis Tzatsos | Designer | 1991 | 1 | |
| Tzimopoulos, Sotiris | Sotiris Tzimopoulos | Actor | 1991 | 4 | |
| Takao, Masumi | Masumi Takao | Director | 1991 | 1 | |
| Tanii, Yoshio | Yoshio Tanii | Actor | 1991 | 1 | |
| Tielsch, Gudrun | Gudrun Tielsch | Actor | 1991 | 1 | |
| Themeli, Nteni | Nteni Themeli | Actor, Translator | 1993 - 2001 | 4 | |
| Tsokli, Magia | Magia Tsokli | Costume Designer | 1991 | 1 | |
| Tellefsen, Arve | Arve Tellefsen | Musician | 2008 - 2016 | 4 | |
| Trembleau, Muriel | Muriel Trembleau | Costume Designer, Designer | 1994 | 2 | |
| Trottier, Patrice | Patrice Trottier | Lighting Designer | 1994 | 5 | |
| Tolsky, Amy | Amy Tolsky | Actor | 1994 | 1 | |
| Tappe, Lore | Lore Tappe | Actor | 1960 - 1994 | 2 | |
| Thaw, David | David Thaw | Actor | 1982 | 1 | |
| Thornton, Maureen | Maureen Thornton | Actor | 1982 | 1 | |
| Traas, R. Michael | R. Michael Traas | Actor | 1994 | 1 | |
| Thiel, Roswitha | Roswitha Thiel | Designer | 1994 | 1 | |
| Tarkmann, Andreas N. | Andreas N. Tarkmann | Composer, Musical Director | 1994 - 1996 | 2 | |
| Togner-Fex, Nina | Nina Togner-Fex | Actor | 1994 - 2000 | 2 | |
| Troughton, David | David Troughton | Actor | 1982 - 1983 | 16 | |
| Tietze, Katharina | Katharina Tietze | Costume Designer | 1994 | 1 | |
| Thau, J. | J. Thau | Director | 1982 | 1 | |
| Teuber, Barbara | Barbara Teuber | Actor | 1994 | 1 | |
| Tax, Yan Tax | Yan Tax | Costume Designer | 1982 | 1 | |
| Taylor, Scott | Scott Taylor | Actor | 1976 - 1982 | 2 | |
| Tschernev, Petar | Petar Tschernev | Actor | 1982 | 1 | |
| Tomova, Maja | Maja Tomova | Actor | 1982 | 1 | |
| Tihova, Mihaila | Mihaila Tihova | Actor | 1982 | 1 | |
| Tzimourtou, Dimitra | Dimitra Tzimourtou | Actor | 2014 - 2015 | 2 | |
| Thalhäuser, Bruno | Bruno Thalhäuser | Actor | 1982 | 1 | |
| Tarasova, Ekaterina | Ekaterina Tarasova (Екатерина Тарасова) | Actor | 2013 | 1 | |
| Tateishi, Ryoko | Ryoko Tateishi | Actor | 1994 | 1 | |
| Thomas, Angelika | Angelika Thomas | Actor | 1994 | 2 | |
| Turkka, Maija-Liisa | Maija-Liisa Turkka | Actor | 1980 | 1 | |
| Tandefelt, Liisi | Liisi Tandefelt | Actor, Costume Designer | 1967 - 1980 | 3 | |
| Tschakrinov, Borislav | Borislav Tschakrinov | Director | 1994 | 1 | |
| Troufakou, Vasiliki | Vasiliki Troufakou | Actor | 2014 - 2015 | 2 | |
| Tiso, Wagner | Wagner Tiso | Composer | 1994 | 1 | |
| Tveit, Inger Katrine | Inger Katrine Tveit | Actor | 1980 | 1 | |
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