| Name | Functions | Event Dates  | Events | Resources | ||
|---|---|---|---|---|---|---|
| Ulla Tapaninen | Actor | 1976 | 1 | |||
| Truus Tullemans | Actor | 1976 | 1 | |||
| Nadia Taleb | Actor | 1976 | 1 | |||
| Brian Taylor | Actor | 1976 | 1 | |||
| Yoshi Tosa | Costume Designer | 1976 | 1 | |||
| Arminda Taveira | Actor | 1976 | 1 | |||
| Francine Tacker | Actor | 1976 - 1977 | 2 | |||
| Tony Teague | Actor | 1976 - 1977 | 4 | |||
| Scott Taylor | Actor | 1976 - 1982 | 2 | |||
| Carlos Torres | Lighting Designer | 1976 - 1994 | 3 | |||
| Bruno Thost | Actor | 1976 - 2006 | 5 | |||
| Gretelill Tangen | Actor | 1976 - 2014 | 12 | 1 | ||
| Madelon Thomas | Actor | 1977 | 1 | |||
| Friedrich Theuring | Actor | 1977 | 1 | |||
| Margaret Tyzack | Actor | 1977 | 1 | |||
| Valentin Teodosiu | Actor | 1977 | 1 | |||
| Cristian Tuţă | Actor | 1977 | 3 | |||
| Jean-Louis Thamin | Director | 1977 | 1 | |||
| Roberto Torido | Actor | 1977 | 1 | |||
| Thomas Toner | Actor | 1977 | 2 | |||
| Nikola Tschiprijanov | Actor | 1977 | 1 | |||
| Howard Taylor | Actor | 1977 | 1 | |||
| Leon Tanner | Actor | 1977 | 1 | |||
| Lampros Tsagkas | Actor | 1977 - 1981 | 12 | |||
| Laurence Tuerk | Lighting Designer, Sound Designer | 1977 - 1984 | 3 | |||
| Christos Tsagkas | Actor, Composer, Director, Dramaturg | 1977 - 1984 | 24 | |||
| Maija-Liisa Thomenius | Costume Designer | 1977 - 1986 | 3 | |||
| Lothar Trautmann | Director | 1977 - 1994 | 2 | |||
| Ersen Tunççekiç | Lighting Designer | 1977 - 2007 | 2 | |||
| Kazuko Tsuji | Actor | 1978 | 2 | |||
| Eduard Töth | Actor | 1978 | 1 | |||
| Veli Tuomas-Kettunen | Actor | 1978 | 1 | |||
| Anders Thuresson | Translator | 1978 | 1 | 1 | ||
| Eugene Troobnick | Actor | 1978 | 1 | 1 | ||
| Sylva Turbová | Actor | 1978 | 1 | |||
| Jaroslava Tvrzníková | Actor | 1978 | 1 | |||
| Ştefan Tivodaru | Actor | 1978 | 1 | |||
| Ray Tillotson | Actor | 1978 | 1 | |||
| Külliki Tool | Actor | 1978 | 1 | |||
| Dennis Tynsley | Actor | 1978 | 1 | |||
| Yusuke Takida | Actor | 1978 | 1 | |||
| Leo Taylor | Actor | 1978 | 3 | |||