| Name | Functions | Event Dates | Events | Resources  | ||
|---|---|---|---|---|---|---|
| Auguste Thiery | Actor | 1900 | 1 | |||
| Hugh Thomas | Designer, Lighting Designer | 1963 | 2 | |||
| Judith Thimm | Designer | 1963 | 1 | |||
| Barry Tannenbaum | Actor | 1963 | 1 | |||
| Jack Taylor | Actor | 2016 | 1 | |||
| Bruce Turk | Actor | 2016 | 1 | |||
| Matt Torney | Director | 2016 | 1 | |||
| David Thompson | Director | 1958 - 1963 | 2 | |||
| Wieland Tropschug | Actor | 1963 | 1 | |||
| Carol Thompson | Actor, Costume Designer | 2000 - 2012 | 2 | |||
| Clarke Thorell | Actor | 2016 | 1 | |||
| Kea Trevett | Actor | 2016 | 1 | |||
| Eric Thompson | Actor | 1962 - 1963 | 4 | |||
| Michio Takeyama | Translator | 1950 - 1963 | 2 | |||
| Mikael Torfason | Adaptation | 2016 | 1 | |||
| Agnethe Tellefsen | Lighting Designer | 2016 | 1 | |||
| Kjersti Tveterås | Actor | 2016 - 2020 | 6 | |||
| Flavia Tomassi | Costume Designer | 2016 | 4 | |||
| Maria Teresa Tanzarella | Actor | 2016 | 4 | |||
| Margarethe Tondeur | Actor | 1912 | 1 | |||
| Yannis Thavoris | Designer | 2012 | 2 | |||
| Herbert Temme | Actor | 1963 | 1 | |||
| Dave Teufel | Actor | 1963 | 1 | |||
| Ilmar Tammur | Actor, Director | 1962 - 1984 | 3 | |||
| Eva Triebel | Actor | 1962 | 2 | |||
| Edmund Thomas | Actor | 1962 | 1 | |||
| Max Trunz | Actor | 1962 | 1 | |||
| John Terfloth | Director | 1962 | 1 | |||
| Antony Tuckey | Actor | 1962 | 1 | |||
| Helmi Teljola | Costume Designer | 1962 | 1 | |||
| Aimo Tepponen | Actor | 1962 | 1 | |||
| Yrjö Tähtelä | Actor | 1962 - 1971 | 2 | |||
| Jennifer Tarver | Director | 2012 - 2016 | 2 | |||
| Fabio Toblini | Costume Designer | 2012 | 1 | |||
| Sara Topham | Actor | 2012 | 1 | |||
| Derek Tansley | Actor | 1962 | 2 | |||
| Rahul Tewari | Actor | 2012 | 1 | |||
| Fernando Teixeira | Lighting Designer | 1961 | 1 | |||
| Christos Tsaganeas | Actor | 1945 - 1997 | 6 | |||
| Wenche Tønseth | Actor | 1961 | 1 | |||
| Dawon Taylor | Actor | 2011 | 12 | |||
| Entscho Tagarov | Actor | 1961 | 1 | |||