| 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 | |
| Thutewohl, Christa-Renate | Christa-Renate Thutewohl | Dramaturg | 2000 | 1 | |
| Trachte, Karolin | Karolin Trachte | Dramaturg | 2017 | 1 | |
| Tekintaş, Dilek | Dilek Tekintaş | Dramaturg | 2012 | 1 | |
| Timsit, Véronique | Véronique Timsit | Dramaturg | 2019 - 2020 | 16 | |
| Tillings, Jessica Alice | Jessica Alice Tillings | Dramaturg | 2022 | 1 | |
| Tonković Dolenčić, Ana | Ana Tonković Dolenčić | Dramaturg | 2014 | 1 | |
| Terwald, Julia | Julia Terwald | Dramaturg | 2024 | 1 | |
| Teperowska, Sosha | Sosha Teperowska | Dramaturg | 2024 - 2025 | 4 | |
| Thomassen, Tine | Tine Thomassen | Dramaturg, Sound Designer | 2006 - 2016 | 263 | 2 |
| Toseva, Lenče | Lenče Toseva | Dramaturg, Translator | 2011 - 2017 | 3 | 1 |
| Town, Johanna | Johanna Town | Lighting Designer | 2000 - 2003 | 2 | |
| To, German | German To | Lighting Designer | 2001 | 1 | |
| Takashima, Katsunosuke | Katsunosuke Takashima | Lighting Designer | 1928 | 1 | |
| Tan, Victor En Yu | Victor En Yu Tan | Lighting Designer | 1988 | 1 | |
| Tweebeeke, Reinier | Reinier Tweebeeke | Lighting Designer | 1992 - 1996 | 21 | |
| Traub, Reinhard | Reinhard Traub | Lighting Designer | 2003 - 2008 | 5 | |
| Tynes, Dag | Dag Tynes | Lighting Designer | 2011 | 1 | |
| Thomassen, Per | Per Thomassen | Lighting Designer | 1971 | 44 | |
| Thayer, David | David L. Thayer | Lighting Designer | 1965 - 1979 | 2 | |
| Tammes, Andre | Andre Tammes | Lighting Designer | 1972 | 6 | |
| Torres, Carlos | Carlos Torres | Lighting Designer | 1976 - 1994 | 3 | |
| Thompson, Howard | Howard Thompson | Lighting Designer | 1961 - 1981 | 4 | |
| Tartaix, Raoul | Raoul Tartaix | Lighting Designer | 1976 | 1 | |
| Tohyama, Shizuo | Shizuo Tohyama | Lighting Designer | 1923 | 1 | |
| Tipton, Jennifer | Jennifer Tipton | Lighting Designer | 1983 - 2009 | 7 | |
| Torres, Santos | Santos Torres | Lighting Designer | 1976 | 1 | |
| Trautvetter, Dieter | Dieter Trautvetter | Lighting Designer | 1986 | 1 | |
| Tondellier, Liliane | Liliane Tondellier | Lighting Designer | 1993 - 2004 | 15 | |
| Truhlar, Robert | Robert Truhlar | Lighting Designer | 1950 | 1 | |
| Tindell, Bo | Bo Tindell | Lighting Designer | 2014 | 1 | |
| Thies, Howard | Howard Thies | Lighting Designer | 1992 | 1 | |
| Thomas, Clive | Clive Thomas | Lighting Designer | 1987 - 1993 | 2 | |
| Trottier, Patrice | Patrice Trottier | Lighting Designer | 1994 | 5 | |
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