| Thoroddsen, Emil | Emil Thoroddsen | Conductor | 1928 | 1 | |
| Thoroughgood, Nicholas | Nicholas Thoroughgood | Director, Lighting Designer | 2020 - 2022 | 3 | |
| Thorp, Kristine | Kristine Thorp | Director | 2010 | 1 | |
| Thorpe, Courtenay | Courtenay Thorpe | Actor | 1894 - 1907 | 13 | |
| Thorpe, Jonathan | Jonathan Thorpe | Actor | 2000 | 1 | |
| Thors, Katrín | Katrín Thors | Actor | 1954 | 1 | |
| Thorsby, Håvard | Håvard Thorsby | Actor | 2009 | 2 | |
| Thorsby, Wenche | Wenche Thorsby | Actor | 1964 | 1 | |
| Thorsdalen, Margit | Margit Thorsdalen | Actor | 1928 | 1 | |
| Thorsen, Benedicte | Benedicte Thorsen | Actor | 2006 | 2 | |
| Thorsen, Joh. | Joh. Thorsen | | | | 1 |
| Thorsen, Karen | Karen Thorsen | Actor | 1884 | 1 | |
| Thorsen, Liv | Liv Thorsen | Actor | 1960 - 1998 | 23 | |
| Thorsen, Liv, Borg | Liv Borg Thorsen | Actor, Adaptation, Director | 1979 - 2019 | 6 | |
| Thorsen, Mikkel | Mikkel Thorsen | Actor | 2010 | 1 | |
| Thorsen, Steinar | Steinar Thorsen | Producer | 2011 | 1 | |
| Thorsen, Troels | Troels Thorsen | Actor | 2014 | 1 | |
| Thorshaug, Elsa, Finne | Elsa Finne Thorshaug | | | | 2 |
| Thorson, Beatrice | Beatrice Thorson | Actor | 1928 | 1 | |
| Thorson, Donna | Donna Thorson | Costume Designer | 2002 | 1 | |
| Thorsson, Jörgen | Jörgen Thorsson | Actor, Composer, Director | 2008 - 2016 | 6 | |
| Thorstad, Ingrid | Ingrid Thorstad | Actor | 1967 | 1 | |
| Thorsteinsen, Torkil | Torkil Thorsteinsen | Actor | 2012 | 1 | |
| Thorstensen, Lena Berg | Lena Berg Thorstensen | Actor | 2007 | 1 | |
| Thorstensen, Lise | Lise Thorstensen | Designer | 2007 | 1 | |
| Thorup, Ib | Ib Thorup | Director, Translator | 1986 - 2009 | 3 | |
| Thorvaldsson, Gudmundur | Gudmundur Thorvaldsson | Actor | 2012 | 1 | |
| Thorwald, Achim | Achim Thorwald | Director | 1975 - 1977 | 2 | |
| Thorwarth, Karolina | Karolina Thorwarth | Actor | 2005 | 4 | |
| Thoss, Sabine | Sabine Thoss | Costume Designer | 2010 | 1 | |
| Thost-Hauser, Katja | Katja Thost-Hauser | Actor | 2006 | 3 | |
| Thost, Bruno | Bruno Thost | Actor | 1976 - 2006 | 5 | |
| Thot, Gabriel | Gabriel Thot | Actor | 2011 | 1 | |
| Thouvenel, Yves | Yves Thouvenel | Actor | 1991 | 1 | |
| Thøgersen, Ida | Ida Thøgersen | Actor | 2008 | 1 | |
| Thrane, - | - Thrane | Composer | 1901 | 1 | |
| Thrane, Edith | Edith Thrane | Actor | 1975 | 1 | |
| Thrane, Joakim | Joakim Thrane | | | | |
| Threlfall, David | David Threlfall | Actor | 1990 - 1999 | 5 | |
| Thring, Frank | Frank Thring | Actor | 1973 | 1 | |
| Throckmorton, Robert | Robert Throckmorton | Director | 2006 | 1 | |
| Throop, Anne | Anne Throop | Actor | 1895 | 2 | |
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