| Thornley, Philip | Philip Thornley | Actor | 1930 | 1 | |
| Thorns, Tricia | Tricia Thorns | Actor | 1972 | 1 | |
| Thornton, Andrew | Andrew Thornton | Actor | 2011 | 1 | |
| Thornton, Angela | Angela Thornton | Actor | 2000 - 2001 | 4 | 1 |
| Thornton, Anna | Anna Thornton | Actor | 2018 | 1 | |
| Thornton, Arthur | Arthur Thornton | Actor | 1940 | 1 | |
| Thornton, Ashley | Ashley Thornton | Actor | 2012 | 1 | |
| Thornton, Cyril | Cyril Thornton | Actor | 1934 - 1935 | 3 | |
| Thornton, Harry | Harry Thornton | Actor | 2011 | 1 | |
| Thornton, Isabel | Isabel Thornton | Actor | 1915 | 1 | |
| Thornton, Jake | Jake Thornton | Actor | 1991 | 1 | |
| Thornton, Jonne | Jonne Thornton | Designer, Lighting Designer | 1970 | 2 | |
| Thornton, Mark | Mark Thornton | Actor | 2006 | 1 | |
| Thornton, Maureen | Maureen Thornton | Actor | 1982 | 1 | |
| Thornton, Michael Patrick | Michael Patrick Thornton | Actor | 2023 | 1 | |
| Thornton, Naomi | Naomi Thornton | Actor | 1968 | 1 | |
| Thornton, Sylvia | Sylvia Thornton | Mask Maker | 1988 | 1 | |
| 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 | 1 |
| 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 | 1 |
| Thorsdalen, Margit | Margit Thorsdalen | Actor | 1928 | 1 | 1 |
| Thorsen, Benedicte | Benedicte Thorsen | Actor | 2006 | 2 | |
| Thorsen, Joh. | Joh. Thorsen | | | | 1 |
| Thorsen, Karen | Karen Thorsen | Actor | 1884 | 1 | |
| Thorsen, Liv Borg | Liv Borg Thorsen | Actor, Adaptation, Director | 1960 - 2019 | 29 | 1 |
| 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 | 1 |
| 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 | 1 |
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