| Temperini, Fabrizio | Fabrizio Temperini | Actor | 2001 | 1 | |
| Tzoras, Spyros | Spyros Tzoras | Lighting Designer | 2002 - 2003 | 4 | |
| Turányi, Alajos | Alajos Turányi | Actor | 1931 | 2 | |
| Tuttle, Jason | Jason Tuttle | Sound Designer | 2003 | 1 | |
| Tosney, Jim | Jim Tosney | Producer | 2003 | 1 | |
| Taylor, Mike | Mike Taylor | Lighting Designer | 1989 | 1 | |
| Toloni, Marco | Marco Toloni | Actor | 2001 - 2002 | 22 | |
| Toffolatti, Sandra | Sandra Toffolatti | Actor | 2001 - 2002 | 22 | |
| Tanner, Giles | Giles Tanner | Lighting Designer, Sound Designer, Technician | 2003 - 2024 | 3 | |
| Tassy, András | András Tassy | Actor | 1941 | 3 | |
| Timm, Damon | Damon Timm | Actor | 2001 | 1 | |
| Tsiakos, Konstantinos | Konstantinos Tsiakos | Actor | 2003 | 1 | |
| Thatcher, Wendy | Wendy Thatcher | Actor | 1989 | 3 | |
| Thoresen, Henrik | Henrik Thoresen | Actor | 2015 | 1 | |
| Thoresen, Simen | Simen Thoresen | Actor | 2015 | 4 | |
| Thoresen, Tove | Tove Thoresen | Actor | 2015 | 2 | |
| Tykesson, Matthias, Hjälm | Matthias Hjälm Tykesson | Actor | 2001 | 1 | |
| Temessy, Hédi | Hédi Temessy | Actor | 1958 | 1 | |
| Theocleous, Benedict | Benedict Theocleous | Actor | 2003 | 7 | |
| Thompson, Philip | Philip Thompson | Actor, Director | 1963 - 2001 | 2 | |
| Tarantino, Mary | Mary Tarantino | Lighting Designer | 2001 | 1 | |
| Truebridge, Marc | Marc Truebridge | Lighting Designer | 2003 | 17 | |
| Teder, Margo | Margo Teder | Actor | 2014 | 1 | |
| Tímár, Béla | Béla Tímár | Actor | 1971 - 1975 | 2 | |
| Tucker, Charles | Charles Tucker | Actor | 2001 | 1 | |
| Törnqvist, Sofia | Sofia Törnqvist | Actor, Adaptation | 2000 - 2001 | 10 | |
| Torkkola, Terttu | Terttu Torkkola | Costume Designer | 2001 | 1 | |
| Tievsky, Matt | Matt Tievsky | Actor | 2003 | 1 | |
| Tamburri, Jack | Jack Tamburri | Director | 2003 - 2017 | 2 | |
| Tchitcherova, Natasha | Natasha Tchitcherova | Choreographer | 2015 | 1 | |
| Tarján, Györgyi | Györgyi Tarján | Actor | 1989 | 3 | |
| Toric, Danijela | Danijela Toric | Actor | 2001 | 3 | |
| Trömböczky, Péter | Péter Trömböczky | Actor | 1989 | 4 | |
| Tóth, Edit | Edit Tóth | Actor | 1989 | 1 | |
| True, Noel | Noel True | Actor | 2003 - 2005 | 2 | |
| Török-Illés, Orsolya | Orsolya Török-Illés | Actor | 1999 | 1 | |
| Terry, Michelle | Michelle Terry | Actor | 2003 | 1 | |
| Tharp, Gary | Gary Tharp | Actor | 2003 | 1 | |
| Topor, Sanna | Sanna Topor | Actor | 2003 | 1 | |
| Taynard, Yanina | Yanina Taynard | Actor | 2003 | 1 | |
| Tóth, Zoltán László | Zoltán László Tóth | Actor | 2007 | 6 | |
| Tóth, Károly | Károly Tóth | Actor | 2007 | 4 | |
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