| Name | Functions | Event Dates  | Events | Resources | ||
|---|---|---|---|---|---|---|
| Stephen Thorne | Actor | 1963 | 1 | |||
| Al Thomas | Actor | 1963 | 1 | |||
| Phil Thomas | Actor | 1963 | 1 | |||
| Hugh Thomas | Designer, Lighting Designer | 1963 | 2 | |||
| Judith Thimm | Designer | 1963 | 1 | |||
| Barry Tannenbaum | Actor | 1963 | 1 | |||
| Wieland Tropschug | Actor | 1963 | 1 | |||
| Herbert Temme | Actor | 1963 | 1 | |||
| Dave Teufel | Actor | 1963 | 1 | |||
| Boris Tarassuk | Actor | 1963 | 2 | |||
| Peter Tim | Actor | 1963 | 2 | |||
| Lennart Tollén | Actor | 1963 - 1984 | 4 | 1 | ||
| Philip Thompson | Actor, Director | 1963 - 2001 | 2 | |||
| Per Tofte | Actor, Adaptation | 1963 - 2016 | 60 | 3 | ||
| E. Tarasova | Designer | 1964 | 1 | |||
| E. Thanopoulou | Actor | 1964 | 1 | |||
| I. Topouzis | Actor | 1964 | 1 | |||
| Joan Tolentino | Actor | 1964 | 1 | |||
| Ludmila Tarasova | Actor | 1964 | 1 | |||
| Arnis Tobis | Actor | 1964 | 1 | |||
| Robert Thirkield | Designer | 1964 | 1 | |||
| Uta Taeger | Actor | 1964 | 1 | |||
| Werner Tronjeck | Actor | 1964 | 1 | |||
| Magdalena Thaler | Actor | 1964 | 1 | |||
| Herbert Tauscher | Actor | 1964 | 1 | |||
| Akira Terada | Director | 1964 | 1 | |||
| Asako Takemasa | Designer | 1964 | 1 | |||
| Wenche Thorsby | Actor | 1964 | 1 | 1 | ||
| Bill Thompson | Lighting Designer | 1964 | 1 | |||
| Maree Tomasetti | Actor | 1964 | 1 | |||
| John Trinder | Actor | 1964 | 1 | |||
| Hans Treichler | Actor | 1964 | 1 | |||
| Dorothea Thiel | Actor | 1964 | 1 | |||
| Verner Tholsgaard | Actor | 1964 | 1 | |||
| Ion Tifor | Actor | 1964 | 1 | |||
| A. Turcanu | Costume Designer | 1964 | 2 | |||
| Alfredo Tobares | Actor | 1964 | 1 | |||
| Dimitris Terzakis | Composer | 1964 - 1965 | 2 | |||
| Leonard Tucker | Lighting Designer | 1964 - 1965 | 5 | |||
| Christopher Timothy | Actor | 1964 - 1965 | 5 | |||
| Georg Thommesen | Actor | 1964 - 1966 | 30 | |||
| Barbette Tweed | Actor | 1964 - 1967 | 3 | |||