| 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 | 1 |
| 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 | |
| Telles, Nidia | Nidia Telles | Actor | 1980 | 1 | |
| Timtscheva, Elena | Elena Timtscheva | Actor | 1980 | 1 | |
| Thalmer, Doris | Doris Thalmer | Actor | 1980 | 1 | |
| Toccafondi, Leo | Leo Toccafondi | Director | 1980 | 1 | |
| Tsekou, Tzeni | Tzeni Tsekou | Actor | 1980 - 1981 | 3 | |
| Tsagkaris, Giorgos | Giorgos Tsagkaris | Composer, Musical Director | 1980 - 1985 | 13 | |
| Tamaris, Elisabeth | Elisabeth Tamaris | Actor | 1980 - 1994 | 4 | |
| Tunaal, Hege | Hege Tunaal | Actor | 1980 - 2020 | 17 | 1 |
| Taymaz, Erdogan | Erdogan Taymaz | Actor | 1981 | 1 | |
| Thatcher, Maggie | Maggie Thatcher | Actor | 1981 | 1 | |
| Timonen, Seppo | Seppo Timonen | Actor | 1981 | 1 | |
| Twardowski, Jan | Jan Twardowski | Actor | 1981 | 1 | 1 |
| Todynek, Teresa | Teresa Todynek | Actor | 1981 | 1 | |
| Tomerius, Lorenz | Lorenz Tomerius | Dramaturg | 1981 | 1 | 1 |
| Thon, Wolfgang | Wolfgang Thon | Actor | 1981 | 1 | |
| Thayer, Eric, Rissler | Eric Rissler Thayer | Sound Designer | 1981 | 1 | |
| Trainer, Karen | Karen Trainer | Actor | 1981 | 1 | |
| Tellering, Michael | Michael Tellering | Actor | 1981 | 1 | |
| Thomas, Sabine | Sabine Thomas | Actor | 1981 | 2 | |
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