| Tank, Heinz W. | Heinz W. Tank | Mask Maker | 1975 | 1 | |
| Theofanous-Vlachou, Myrto | Myrto Theofanous-Vlachou | Mask Maker | 2012 | 1 | |
| Tellström-Bergh, Mona | Mona Tellström-Bergh | Mask Maker | 1984 | 1 | |
| Thornton, Sylvia | Sylvia Thornton | Mask Maker | 1988 | 1 | |
| Takanen, Riina | Riina Takanen | Mask Maker | 2002 | 1 | |
| Tarak, - | - Tarak | Mask Maker | 2006 | 3 | |
| Trory, Meran | Meran Trory | Mask Maker | 2006 | 1 | |
| Townsend, Daniel | Daniel Townsend | Mask Maker | 2006 | 1 | |
| Thiele, Erich | Erich Thiele | Mask Maker | 1951 | 1 | |
| Todorov, Kiril | Kiril Todorov | Musical Director | 1974 | 1 | |
| Tsatsouli, Kleio | Kleio Tsatsouli | Musical Director | 1972 - 1990 | 3 | |
| Trieder, Jan | Jan Trieder | Musical Director | 1988 | 1 | |
| Towns, Colin | Colin Towns | Musical Director | 2014 | 2 | |
| Taravella, August | August Taravella | Musical Director | 1918 | 1 | |
| Teussink, Maartje | Maartje Teussink | Musical Director | 2017 | 1 | |
| Tot, Ilona | Ilona Tot | Musical Director | 1992 | 1 | |
| Todua, David | David Todua | Musical Director | 2013 | 1 | |
| Tali, Anu | Anu Tali | Musical Director | 2025 | 1 | |
| Theodorou, Krystalia | Krystalia Theodorou | Musical Director, Musician | 2022 - 2023 | 4 | |
| Torgersen, Jon | Jon Torgersen | Musician | 1990 | 1 | |
| Teien, Kjetil | Kjetil Teien | Musician | 2013 | 2 | |
| Teien, Trygve | Trygve Teien | Musician | 2013 | 2 | |
| Thwaites, Louise | Louise Thwaites | Musician | 2014 | 1 | |
| Trinh, Quang, Minh | Quang Minh Trinh | Musician | 2014 | 1 | |
| Tellefsen, Arve | Arve Tellefsen | Musician | 2008 - 2016 | 4 | |
| Thiemann, Harald | Harald Thiemann | Musician | 1995 | 1 | |
| Thanos, Vangelis | Vangelis Thanos | Musician | 2002 | 1 | |
| Tuková, Dominika | Dominika Tuková | Musician | 2010 - 2011 | 5 | |
| Thompson, Paul | Paul Thompson | Musician | 2005 | 1 | 1 |
| Torebo-Gregorius, John | John Torebo-Gregorius | Musician | 2001 | 1 | |
| Tegnér, Ulrika | Ulrika Tegnér | Musician | 2001 | 1 | |
| Torres, Israel | Israel Torres | Musician | 2006 | 2 | |
| Thierry, Valeria | Valeria Thierry | Musician | 2006 | 2 | |
| Twaddle, Michael | Michael Twaddle | Musician | 2006 | 1 | |
| Twaddle, Christopher | Christopher Twaddle | Musician | 2006 | 1 | |
| Twaddle, Joanna | Joanna Twaddle | Musician | 2006 | 1 | |
| Thomas, Christophe | Christophe Thomas | Musician | 2008 | 3 | |
| Tolan-Mae, Sarah | Sarah Tolan-Mae | Musician | 2008 | 1 | |
| Tobis, Kaspars | Kaspars Tobis | Musician | 2013 | 1 | |
| Teja, Suddala Ashok | Suddala Ashok Teja | Musician | 2015 | 1 | |
| Timlin, Marko | Marko Timlin | Musician | 2014 | 1 | |
| Truax, Thomas | Thomas Truax | Musician | 2013 | 1 | |
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