| Thomsen, Bjarne | Bjarne Thomsen | Actor | 1964 - 1982 | 37 | |
| Thyholdt, Lorentz | Lorentz Thyholdt | Actor | 1892 - 1928 | 34 | 1 |
| Tørressen, Hege Randi | Hege Randi Tørressen | Adaptation, Dramaturg | 2002 - 2024 | 34 | 1 |
| Torre, José Martín | José Martín Torre | Choreographer | 2004 - 2006 | 34 | |
| Thiel, Frank | Frank Thiel | Actor | 2009 | 33 | |
| Toms, Asbjørn | Asbjørn Toms | Actor | 1948 - 1987 | 31 | |
| Thommesen, Georg | Georg Thommesen | Actor | 1964 - 1966 | 30 | |
| Thorsen, Liv Borg | Liv Borg Thorsen | Actor, Adaptation, Director | 1960 - 2019 | 29 | 1 |
| Tombre, Jon | Jon Tombre | Adaptation, Director | 1997 - 2008 | 28 | 1 |
| Torheim, Anne Karin | Anne Karin Torheim | Actor | 1982 | 28 | 1 |
| Tolo, Kathrine | Kathrine Tolo | Costume Designer, Designer | 1998 - 2010 | 27 | 1 |
| Tabé, Atina | Atina Tabé | Actor | 2016 - 2019 | 27 | |
| Titieni, Adrian | Adrian Titieni | Actor | 1985 - 2019 | 26 | |
| Timmermans, Greg | Greg Timmermans | Actor | 2007 | 25 | |
| Tsagkas, Christos | Christos Tsagkas | Actor, Composer, Director, Dramaturg | 1977 - 1984 | 24 | |
| ter Steege, Johanna | Johanna ter Steege | Actor | 2000 | 23 | |
| 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 | |
| Taddei, Andrea | Andrea Taddei | Costume Designer, Designer | 2000 - 2014 | 21 | |
| Tressler, Otto | Otto Tressler | Actor | 1903 - 1931 | 21 | 1 |
| Tweebeeke, Reinier | Reinier Tweebeeke | Lighting Designer | 1992 - 1996 | 21 | |
| Tyrén, Ingemar | Ingemar Tyrén | Lighting Designer | 1991 | 21 | |
| Thropp, Clara | Clara Thropp | Actor | 1890 - 1905 | 21 | |
| Tallroth, Konrad | Konrad Tallroth | Actor | 1894 - 1923 | 20 | |
| Tangen, Marte | Marte Tangen | Actor | 2006 - 2010 | 20 | 3 |
| Tolsgaard, Jens | Jens Tolsgaard | Actor, Composer, Musician | 2013 - 2014 | 20 | |
| Turtur, Valentina | Valentina Turtur | Designer | 2018 | 20 | |
| Tholozan, Benjamin | Benjamin Tholozan | Actor | 2016 - 2020 | 20 | |
| Thegerström, Ferdinand | Ferdinand Thegerström | Actor | 1874 - 1894 | 19 | 1 |
| Tenhaeff, Reinhard | Reinhard Tenhaeff | Actor | 1903 - 1915 | 19 | |
| Tagestad, Erling | Erling Tagestad | Actor | 1995 - 2004 | 18 | |
| Trommer, Barbara | Barbara Trommer | Actor | 1992 - 2008 | 18 | |
| Taravella, Luisa | Luisa Taravella | Costume Designer, Designer | 1988 - 1989 | 18 | |
| Tolentino, Eduardo | Eduardo Tolentino | Adaptation, Director | 1988 - 1989 | 18 | |
| Tomsa, Filip | Filip Tomsa | Actor | 2005 - 2007 | 18 | |
| Teprt, Roman | Roman Teprt | Actor | 2005 - 2007 | 18 | |
| Tatakos, Kostas | Kostas Tatakos | Lighting Designer | 2009 - 2012 | 18 | |
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