| Tweebeeke, Reinier | Reinier Tweebeeke | Lighting Designer | 1992 - 1996 | 21 | |
| Tyrén, Ingemar | Ingemar Tyrén | Lighting Designer | 1991 | 21 | |
| Tellefsen, Pia | Pia Tellefsen | Actor | 1981 - 1997 | 22 | 1 |
| Toset, Ole Petter Angell | Ole Petter Angell Toset | Actor | 1996 - 2007 | 22 | |
| Toset, Solveig Mollebæk | Solveig Mollebæk Toset | Actor | 1996 - 2007 | 22 | |
| Tozer, Katherine | Katherine Tozer | Actor, Adaptation | 2013 - 2014 | 22 | 3 |
| Toloni, Marco | Marco Toloni | Actor | 2001 - 2002 | 22 | |
| Toffolatti, Sandra | Sandra Toffolatti | Actor | 2001 - 2002 | 22 | |
| Tribouilloy, Brigitte | Brigitte Tribouilloy | Costume Designer | 2003 - 2019 | 22 | |
| ter Steege, Johanna | Johanna ter Steege | Actor | 2000 | 23 | |
| Tsagkas, Christos | Christos Tsagkas | Actor, Composer, Director, Dramaturg | 1977 - 1984 | 24 | |
| Timmermans, Greg | Greg Timmermans | Actor | 2007 | 25 | |
| Titieni, Adrian | Adrian Titieni | Actor | 1985 - 2019 | 26 | |
| Tolo, Kathrine | Kathrine Tolo | Costume Designer, Designer | 1998 - 2010 | 27 | 1 |
| Tabé, Atina | Atina Tabé | Actor | 2016 - 2019 | 27 | |
| Teti, Carla | Carla Teti | Costume Designer | 2013 | 27 | |
| Tombre, Jon | Jon Tombre | Adaptation, Director | 1997 - 2008 | 28 | 1 |
| Torheim, Anne Karin | Anne Karin Torheim | Actor | 1982 | 28 | 1 |
| Thropp, Clara | Clara Thropp | Actor | 1890 - 1905 | 28 | |
| Thorsen, Liv Borg | Liv Borg Thorsen | Actor, Adaptation, Director | 1960 - 2019 | 29 | 1 |
| Thommesen, Georg | Georg Thommesen | Actor | 1964 - 1966 | 30 | |
| Toms, Asbjørn | Asbjørn Toms | Actor | 1948 - 1987 | 31 | |
| Thiel, Frank | Frank Thiel | Actor | 2009 | 33 | |
| Thyholdt, Lorentz | Lorentz Thyholdt | Actor | 1892 - 1928 | 34 | 1 |
| Torre, José Martín | José Martín Torre | Choreographer | 2004 - 2006 | 34 | |
| Trillo, Dani | Dani Trillo | Actor | 2023 - 2025 | 35 | |
| Tørressen, Hege Randi | Hege Randi Tørressen | Adaptation, Dramaturg | 2002 - 2024 | 36 | 1 |
| Timi, Filippo | Filippo Timi | Adaptation, Director, Translator | 2016 - 2017 | 36 | |
| Tellefsen, Tom | Tom Tellefsen | Actor | 1971 - 2005 | 37 | 1 |
| Thomsen, Bjarne | Bjarne Thomsen | Actor | 1964 - 1982 | 37 | |
| Tanghe, Dirk | Dirk Tanghe | Costume Designer, Designer, Director, Translator | 1994 - 2004 | 38 | |
| Tsumura, Reijiro | Reijiro Tsumura | Actor, Adaptation | 2005 - 2013 | 38 | 1 |
| Tønder, Ingrid | Ingrid Tønder | Lighting Designer, Set Designer | 2003 - 2024 | 38 | |
| Thunbo, Morten | Morten Thunbo | Actor | 1997 - 2002 | 38 | 1 |
| Tveito, Einar | Einar Tveito | Actor | 1927 - 1938 | 40 | 1 |
| Torkildsen, Unni | Unni Torkildsen | Actor | 1925 - 2006 | 41 | 1 |
| Taddei, Andrea | Andrea Taddei | Costume Designer, Designer | 2000 - 2014 | 42 | |
| Taeger, Friedrich | Friedrich Taeger | Actor | 1893 - 1926 | 43 | |
| Thue, Axel | Axel Thue | Actor | 1935 - 1979 | 44 | 1 |
| Thomassen, Per | Per Thomassen | Lighting Designer | 1971 | 44 | |
| Thorell, Cilla | Cilla Thorell | Actor | 1993 - 2016 | 45 | 1 |
| Thimonnier, Pauline | Pauline Thimonnier | Dramaturg | 2014 - 2025 | 46 | |
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