| Name | Functions | Event Dates | Events | Resources  | ||
|---|---|---|---|---|---|---|
| Dieter Trautvetter | Lighting Designer | 1986 | 1 | |||
| Marianne Thielmann | Actor | 1986 - 2008 | 7 | |||
| Éva Tímár | Actor | 1983 - 1991 | 2 | |||
| László Teszáry | Actor | 1983 | 1 | |||
| Balázs Tardy | Actor | 1983 | 1 | |||
| Giorgos Tzerpos | Actor | 1984 - 1989 | 2 | |||
| Giannis Tatsis | Actor | 1984 - 1989 | 2 | |||
| Christina Tsafou | Actor | 1989 | 1 | |||
| Antonieta Tati | Actor | 1991 | 1 | |||
| Janet Tomkins | Actor | 1983 | 1 | |||
| Marcus Toulmin-Rothe | Actor | 1983 - 1986 | 2 | |||
| Jerzy Trela | Actor | 1983 - 1994 | 2 | |||
| Liliane Tondellier | Lighting Designer | 1993 - 2004 | 15 | |||
| Yvette Théraulaz | Actor | 1993 | 13 | |||
| Claude Thébert | Actor | 1993 | 13 | |||
| Annette Taylor | Actor | 1994 | 1 | |||
| Dixie Tymitz | Actor | 1983 | 1 | |||
| Michalis Tampoukas | Actor | 1995 | 16 | |||
| Anne Traeger | Actor | 1983 | 1 | |||
| Jon Tindle | Actor | 1995 | 1 | |||
| Reijo Tuomi | Designer | 1995 | 1 | |||
| - Twice A Man | Sound Designer | 1999 | 2 | |||
| Anastasia Theofanidou | Choreographer | 1984 - 2001 | 4 | |||
| Charis Tsitsakis | Actor | 1992 - 2001 | 3 | |||
| Ivan Trojan | Actor | 1996 - 2012 | 7 | |||
| Kishore Thukral | Actor | 2006 | 1 | |||
| Kuleshwar Kumar Thakur | Actor | 2006 | 1 | |||
| Michael Tagoe | Actor | 2006 | 1 | |||
| Viktor Tzaptašvilli | Choreographer | 2008 | 1 | |||
| Susie Trayling | Actor | 1997 - 2008 | 3 | |||
| Iwao Takahashi | Sound Designer | 2008 | 1 | |||
| Shinichi Tsutsumi | Actor | 2008 - 2018 | 3 | |||
| Viktor Tremmel | Actor | 2003 - 2014 | 3 | |||
| Paige Talbert | Actor | 2008 | 1 | |||
| Wolfgang Türk | Dramaturg | 2008 | 1 | |||
| Charles Turley | Actor | 1950 | 1 | |||
| Robert Truhlar | Lighting Designer | 1950 | 1 | |||
| Johanna Tague | Actor | 2009 | 1 | |||
| Kathleen Pirkl Tague | Actor | 2009 | 1 | |||
| Séverine Thiebault | Costume Designer | 2009 - 2021 | 7 | |||
| Jérôme Tuncer | Sound Designer | 2009 - 2010 | 5 | |||
| Frank Thiel | Actor | 2009 | 33 | |||