| Tarant , Michael | Michael Tarant | Actor, Director | 1978 - 2012 | 3 | |
| Taraschi, Rosario | Rosario Taraschi | Actor | 1979 | 1 | |
| Tate, Richard | Richard Tate | Actor | 1979 | 1 | |
| Turgan, A. | A. Turgan | Actor | 1979 | 1 | |
| Travin, D. | D. Travin | Actor | 1979 | 1 | |
| Tabakov, O. | O. Tabakov | Actor | 1979 | 1 | |
| Tschierschky, Doris | Doris Tschierschky | Dramaturg | 1979 | 1 | |
| Tomei, Concetta | Concetta Tomei | Actor | 1979 | 1 | |
| Tanenbaum, Jacob | Jacob Tanenbaum | Actor | 1979 | 1 | |
| Thomas, Dagmar | Dagmar von Thomas | Actor | 1979 | 1 | |
| Tomasik, Marek | Marek Tomasik | Designer | 1979 | 1 | |
| Teper, Nancy | Nancy Teper | Actor | 1979 | 1 | |
| Thormann, Hans-Ulrich | Hans-Ulrich Thormann | Costume Designer, Designer | 1979 | 2 | |
| Taulo, Risto | Risto Taulo | Actor | 1979 | 1 | |
| Tiensuu, Anna-Liisa | Anna-Liisa Tiensuu | Actor | 1979 | 1 | |
| Teittinen, Erkki | Erkki Teittinen | Actor | 1979 | 1 | |
| Tośta, Antoni | Antoni Tośta | Designer | 1979 | 1 | |
| Tomase, Ilga | Ilga Tomase | Actor | 1979 | 1 | |
| Tudor, Sally | Sally Tudor | Actor | 1979 | 1 | |
| Tudor, Nicholas | Nicholas Tudor | Actor | 1979 | 1 | |
| Tvedt, Knut Are | Knut Are Tvedt | Actor | 1979 - 1980 | 2 | |
| ten Bruggencate, Catherine | Catherine ten Bruggencate | Actor | 1979 - 1992 | 3 | |
| Turner, Jerry | Jerry Turner | Director, Translator | 1979 - 2003 | 8 | |
| Thorsen, Liv, Borg | Liv Borg Thorsen | Actor, Adaptation, Director | 1979 - 2019 | 6 | |
| Tingwell, Charles "Bud" | Charles "Bud" Tingwell | Actor | 1980 | 1 | |
| Tanimanidi, El. | El. Tanimanidi | Director | 1980 | 1 | |
| Trapero, Verónica | Verónica Trapero | Actor | 1980 | 1 | |
| Turkka, Maija-Liisa | Maija-Liisa Turkka | Actor | 1980 | 1 | |
| Tveit, Inger Katrine | Inger Katrine Tveit | Actor | 1980 | 1 | |
| Tveit, Marianne Therese | Marianne Therese Tveit | Actor | 1980 | 1 | |
| Törnquist, Arne | Arne Törnquist | Translator | 1980 | 1 | |
| Tofield, Barry | Barry Tofield | Lighting Designer | 1980 | 1 | |
| Torniainen, Leena | Leena Torniainen | Actor | 1980 | 1 | |
| Tuominen, Jukka | Jukka Tuominen | Actor | 1980 | 1 | |
| The dog, Yeti | Yeti The dog | Actor | 1980 | 1 | |
| Trombley, Jeannette-esther | Jeannette-esther Trombley | Actor | 1980 | 1 | |
| Torsten, Ena | Ena Torsten | Actor | 1980 | 1 | |
| Tissler, Klaus | Klaus Tissler | Actor | 1980 | 1 | |
| Török, Andras | Andras Török | Actor | 1980 | 1 | |
| Tschakarova, Zhorzheta | Zhorzheta Tschakarova | Actor | 1980 | 1 | |
| Tontscheva, Doroteja | Doroteja Tontscheva | Actor | 1980 | 1 | |
| Tasseva, Leda | Leda Tasseva | Actor | 1980 | 1 | |
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