| Thommessen, Olav Anton | Olav Anton Thommessen | Composer | 1987 - 1989 | 2 | 1 |
| Thomas, Clive | Clive Thomas | Lighting Designer | 1987 - 1993 | 2 | |
| Trixner, Heinz | Heinz Trixner | Actor | 1987 - 2003 | 3 | |
| Thomas, Sian | Sian Thomas | Actor, Director | 1987 - 2012 | 3 | 1 |
| Tindberg, Svein | Svein Tindberg | Actor | 1987 - 2018 | 11 | 1 |
| Torn, Rip | Rip Torn | Actor | 1988 | 1 | |
| Tan, Victor En Yu | Victor En Yu Tan | Lighting Designer | 1988 | 1 | |
| Trieder, Jan | Jan Trieder | Musical Director | 1988 | 1 | |
| Toma, Richard | Richard Toma | Director | 1988 | 1 | |
| Tainish, Tracey | Tracey Tainish | Actor | 1988 | 1 | |
| Turi, Francesco | Francesco Turi | Actor, Designer, Lighting Designer | 1988 | 3 | |
| Thornton, Sylvia | Sylvia Thornton | Mask Maker | 1988 | 1 | |
| Tebeck, Frank | Frank Tebeck | Actor | 1988 | 1 | |
| Teal, Joyce | Joyce Teal | Actor | 1988 | 1 | |
| Taylor, Leith | Leith Taylor | Actor | 1988 | 1 | |
| Tusvik Bonde, Ane | Ane Tusvik Bonde | Actor | 1988 | 1 | |
| Thompson, Fran | Fran Thompson | Designer | 1988 | 2 | |
| Taravella, Luisa | Luisa Taravella | Costume Designer, Designer | 1988 - 1989 | 18 | |
| Tolentino, Eduardo | Eduardo Tolentino | Adaptation, Director | 1988 - 1989 | 18 | |
| Tolentino, Lola | Lola Tolentino | Costume Designer | 1988 - 1989 | 9 | |
| Thomson, Brian | Brian Thomson | Designer | 1988 - 1991 | 2 | 1 |
| Tate, Jennie | Jennie Tate | Costume Designer | 1988 - 1991 | 2 | 1 |
| Tripp, Helen | Helen Tripp | Actor | 1988 - 1998 | 2 | |
| Tyrrell, John | John Tyrrell | Actor | 1988 - 2006 | 3 | 1 |
| Torp, Kristin | Kristin Torp | Costume Designer, Designer | 1988 - 2013 | 5 | |
| Tveitt, Geirr | Geirr Tveitt | Composer, Musician | 1988 - 2013 | 4 | 1 |
| Tani, Ikuko | Ikuko Tani | Actor | 1989 | 1 | |
| Triana, Gisella | Gisella Triana | Actor | 1989 | 1 | |
| Tychowa, Lucyna | Lucyna Tychowa | Director | 1989 | 1 | |
| Tkautz, Steven | Steven Tkautz | Actor | 1989 | 2 | |
| Tsafou, Christina | Christina Tsafou | Actor | 1989 | 1 | |
| Thévelin, Claude | Claude Thévelin | Actor | 1989 | 1 | |
| Teruggi, Daniel | Daniel Teruggi | Composer | 1989 | 1 | |
| Theiakos, Giannis | Giannis Theiakos | Actor | 1989 | 1 | |
| Tordy, Géza | Géza Tordy | Actor | 1989 | 1 | |
| Taylor, Mike | Mike Taylor | Lighting Designer | 1989 | 1 | |
| Thatcher, Wendy | Wendy Thatcher | Actor | 1989 | 3 | |
| Tarján, Györgyi | Györgyi Tarján | Actor | 1989 | 3 | |
| Trömböczky, Péter | Péter Trömböczky | Actor | 1989 | 4 | |
| Tóth, Edit | Edit Tóth | Actor | 1989 | 1 | |
| Tomíček, Božek | Božek Tomíček | Actor | 1989 | 2 | |
| Tangen, Eva Kristin | Eva Kristin Tangen | Actor | 1989 | 1 | |
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