| Thomas, Mia, | Mia Thomas | Actor | 1905 | 4 | |
| Thomas, Michael | Michael Thomas | Actor | 2005 - 2006 | 1 | |
| Thomas, Michael, Dix | Michael Dix Thomas | Actor | 2012 | 1 | |
| Thomas, Michael, Tilson | Michael Tilson Thomas | Conductor | 2013 | 1 | |
| Thomas, Mitchell | Mitchell Thomas | Actor | 2011 | 2 | |
| Thomas, Neal | Neal Thomas | Actor | 1981 | 2 | |
| Thomas, Nick | Nick Thomas | Actor | 1972 - 2003 | 2 | |
| Thomas, Olivier | Olivier Thomas | Composer | 1995 - 1996 | 4 | |
| Thomas, Pascal | Pascal Thomas | Actor | 2012 | 1 | |
| Thomas, Phil | Phil Thomas | Actor | 1963 | 1 | |
| Thomas, Rachel, | Rachel Thomas | Actor | 1972 - 1981 | 2 | |
| Thomas, Ray | Ray Thomas | Actor | 2009 | 2 | |
| Thomas, Richard | Richard Thomas | Actor | 1959 - 2012 | 3 | |
| Thomas, Robert | Robert Thomas | Actor | 1983 | 2 | |
| Thomas, Roger | Roger Thomas | Actor | 1968 | 4 | |
| Thomas, Roger, | Roger Thomas | Actor | 1937 | 1 | |
| Thomas, Rohan | Rohan Thomas | Actor | 2007 | 1 | |
| Thomas, Sabine | Sabine Thomas | Actor | 1981 | 2 | |
| Thomas, Sara-Mair | Sara-Mair Thomas | Actor | 1990 | 1 | |
| Thomas, Sarah | Sarah Thomas | Actor | 2007 | 1 | |
| Thomas, Scott | Scott Thomas | Actor | 1971 | 1 | |
| Thomas, Sean | Sean Thomas | Actor | 2010 | 1 | |
| Thomas, Shannon | Shannon Thomas | Actor | 2018 | 1 | |
| Thomas, Sian | Sian Thomas | Actor, Director | 1987 - 2007 | 3 | |
| Thomas, Steve | Steve Thomas | Actor | 2017 | 1 | |
| Thomas, Tony | Tony Thomas | Actor | 2004 | 2 | |
| Thomas, Walter, | Walter Thomas | Actor, Director | 1926 | 2 | |
| Thomas, Wolf | Wolf Thomas | Actor | 1959 | 1 | |
| Thomas, Yolanda, | Yolanda Thomas | Costume Designer | 2006 | 1 | |
| Thomasberger, Erika | Erika Thomasberger | Costume Designer, Designer | 1953 | 5 | |
| Thomassen Slørdahl, Andreas | Andreas Thomassen Slørdahl | Actor | 2004 | 4 | |
| Thomassen, Gustav, | Gustav Thomassen | Actor, Director | 1883 - 1928 | 62 | 1 |
| Thomassen, John, | John Thomassen | Actor | 2006 | 1 | |
| Thomassen, Kenneth, | Kenneth Thomassen | Actor | 1998 | 10 | |
| Thomassen, Knut | Knut Thomassen | Director | 1953 - 2006 | 6 | |
| Thomassen, Per | Per Thomassen | Lighting Designer | 1971 | 44 | |
| Thomassen, Thomas | Thomas Thomassen | Actor | 1885 | 7 | 7 |
| Thomassen, Thomas Christian, | Thomas Christian Thomassen | Actor, Director | 1901 - 1907 | 84 | |
| Thomassen, Tine, | Tine Thomassen | Dramaturg, Sound Designer | 2006 - 2016 | 264 | |
| Thomassen, V.G., | V. G. Thomassen (V.G. Thomassen) | Actor | 1909 | 2 | |
| Thomasson, Peter | Peter Thomasson | Actor | 2010 | 1 | |
| Thomenius, Maija-Liisa | Maija-Liisa Thomenius | Costume Designer | 1977 - 1987 | 3 | |
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