| Tunççekiç, Ersen | Ersen Tunççekiç | Lighting Designer | 1977 - 2007 | 2 | |
| Taylor, Adam | Adam Taylor | Lighting Designer | 2017 | 1 | |
| Treacy, Kevin | Kevin Treacy | Lighting Designer | 2015 | 1 | |
| Taylor, Douglas | Douglas Taylor | Lighting Designer | 1978 | 1 | |
| Tan, Shaoyuan | Shaoyuan Tan | Lighting Designer | 2017 - 2018 | 7 | |
| Trumper, Bernardo | Bernardo Trumper | Lighting Designer | 1986 | 1 | |
| Thomson, Corey | Corey Thomson | Lighting Designer | 1997 | 1 | |
| Tovar, Eirik | Eirik Tovar | Lighting Designer | 2017 | 1 | |
| Tottil, José María | José María Tottil | Lighting Designer | 2019 | 1 | |
| Tziogkas, Christos | Christos Tziogkas | Lighting Designer | 2019 | 1 | |
| Taherbakhsh, Rasool | Rasool Taherbakhsh | Lighting Designer | 2017 | 1 | |
| Truffa, Valerio | Valerio Truffa | Lighting Designer | 1985 | 2 | |
| Thicot, Charly | Charly Thicot | Lighting Designer | 2017 | 1 | |
| Tesson, Guillaume | Guillaume Tesson | Lighting Designer | 2021 | 2 | |
| Tovar, Brian | Brian Tovar | Lighting Designer | 2022 | 1 | |
| Toben, Paul | Paul Toben | Lighting Designer | 2022 | 1 | |
| Treays, John | John Treays | Lighting Designer | 1972 | 1 | |
| Tilley, Caz | Caz Tilley | Lighting Designer | 1986 | 1 | |
| Thompson, Kristin A. | Kristin A. Thompson | Lighting Designer | 2022 | 1 | |
| Talbot, Clare | Clare Talbot | Lighting Designer | 2022 | 1 | |
| Tortul , Jessica | Jessica Tortul | Lighting Designer | 2016 - 2018 | 4 | |
| Toseva, Lenče | Lenče Toseva | Dramaturg, Translator | 2011 - 2017 | 3 | 1 |
| Thomassen, Tine | Tine Thomassen | Dramaturg, Sound Designer | 2006 - 2016 | 263 | 2 |
| Templeton, Joan | Joan Templeton | Dramaturg | 1998 - 2001 | 6 | 1 |
| Thiele, Rita | Rita Thiele | Dramaturg | 1997 | 1 | 1 |
| Tschierschky, Doris | Doris Tschierschky | Dramaturg | 1979 | 1 | |
| Tomerius, Lorenz | Lorenz Tomerius | Dramaturg | 1981 | 1 | 1 |
| Türk, Wolfgang | Wolfgang Türk | Dramaturg | 2008 | 1 | |
| Thelemann, Susanne | Susanne Thelemann | Dramaturg | 1990 - 2008 | 6 | |
| Tisal, Albert | Albert Tisal | Dramaturg | 1993 | 2 | |
| Toporišič, Tomaž | Tomaž Toporišič | Dramaturg | 1994 | 1 | |
| Tiedtke, Marion | Marion Tiedtke | Dramaturg | 1995 - 2019 | 2 | |
| Thimonnier, Pauline | Pauline Thimonnier | Dramaturg | 2014 - 2024 | 15 | |
| Török, Tamara | Tamara Török | Dramaturg | 2013 | 1 | |
| Tošovský, Jan | Jan Tošovský | Dramaturg | 2011 | 2 | |
| Thomas, LaRonika | LaRonika Thomas | Dramaturg | 2005 - 2006 | 3 | |
| Tate, Kamella | Kamella Tate | Dramaturg | 2001 | 1 | |
| Trütschel, Eva-Maria | Eva-Maria Trütschel | Dramaturg | 2013 | 1 | |
| Tjäder, Per | Per Tjäder | Dramaturg | 2011 | 1 | |
| Thein, Christoph | Christoph Thein | Dramaturg | 2011 | 13 | |
| Tauscher, Petra Jane | Petra Jane Tauscher | Dramaturg | 2016 | 1 | |
| Thomas, Holly | Holly Thomas | Dramaturg | 1998 | 1 | |
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