| Todorova, Elka | Elka Todorova | Costume Designer, Designer | 2001 | 2 | |
| Taillefert, Jean-Luc | Jean-Luc Taillefert | Costume Designer, Designer | 2007 - 2008 | 8 | |
| Trikerioti, Magiou | Magiou Trikerioti | Costume Designer, Designer | 2008 | 2 | |
| Toledo, Navalú | Navalú Toledo | Costume Designer, Designer | 2010 | 2 | |
| Tarragüel Rubio, Alex | Alex Tarragüel Rubio | Costume Designer, Designer | 2011 | 2 | |
| Tewes, Joki | Joki Tewes | Costume Designer, Designer | 2015 | 2 | |
| Tsarouchis, Giannis | Giannis Tsarouchis | Costume Designer, Designer | 1943 - 1964 | 4 | |
| Tsekoura, Errieti | Errieti Tsekoura | Costume Designer, Designer | 2012 - 2014 | 2 | |
| Tofan, Mihai | Mihai Tofan | Costume Designer, Designer | 1966 | 4 | |
| Triana, Rafael | Rafael Triana | Costume Designer, Designer | 2013 | 2 | |
| Thomas, Aurélie | Aurélie Thomas | Costume Designer, Designer | 2000 | 2 | |
| Thomsen, Olivia | Olivia Thomsen | Costume Designer, Designer | 2017 | 2 | |
| Tracey, Michelle | Michelle Tracey | Costume Designer, Designer | 2014 - 2015 | 4 | |
| Toromanov, Nikola | Nikola Toromanov | Costume Designer, Designer | 2018 | 2 | |
| Thanopoulos, Pavlos | Pavlos Thanopoulos | Costume Designer, Designer | 2019 | 2 | |
| Thomenius, Maija-Liisa | Maija-Liisa Thomenius | Costume Designer | 1977 - 1987 | 3 | |
| Tazewell, Paul, | Paul Tazewell | Costume Designer | 1993 - 1998 | 2 | |
| Trout, Deb, | Deb Trout | Costume Designer | 2003 | 1 | |
| Tashiro, Yoko | Yoko Tashiro | Costume Designer | 1997 | 1 | |
| Thomas, Yolanda, | Yolanda Thomas | Costume Designer | 2006 | 1 | |
| Tan, Bie Giok | Bie Giok Tan | Costume Designer | 1975 | 1 | |
| Thaler, Martin A. | Martin A. Thaler | Costume Designer | 2010 | 1 | |
| Twidale, Lynda | Lynda Twidale | Costume Designer | 2011 | 1 | |
| Tollefson, Kristina | Kristina Tollefson | Costume Designer | 1999 | 1 | |
| Thien, Georg, | Georg Thien | Costume Designer | 1939 | 1 | |
| Tobey, P. L. | P. L. Tobey | Costume Designer | 1926 | 1 | |
| Thiebault, Séverine | Séverine Thiebault | Costume Designer | 2009 - 2010 | 3 | |
| Tarantina, Michelle | Michelle Tarantina | Costume Designer | 2010 | 1 | |
| Träbing, Ilse | Ilse Träbing | Costume Designer | 1983 | 1 | |
| Tobisch, Suse | Suse Tobisch | Costume Designer | 2013 - 2014 | 2 | |
| Tag, Katrin Lea | Katrin Lea Tag | Costume Designer | 2011 - 2012 | 1 | |
| Takeuchi, Yoko | Yoko Takeuchi | Costume Designer | 2006 - 2018 | 12 | |
| Tate, Jennie | Jennie Tate | Costume Designer | 1988 | 2 | |
| Tolentino, Lola | Lola Tolentino | Costume Designer | 1988 | 9 | |
| Tsokli, Magia | Magia Tsokli | Costume Designer | 1991 - 1992 | 1 | |
| Tietze, Katharina | Katharina Tietze | Costume Designer | 1994 | 1 | |
| Tax, Yan Tax | Yan Tax | Costume Designer | 1982 | 1 | |
| Treskatis, Barbara | Barbara Treskatis | Costume Designer | 1968 | 1 | |
| Tóth, András | András Tóth | Costume Designer | 2001 | 1 | |
| Tóth, Árpád | Árpád Tóth | Costume Designer | 2001 | 1 | |
| Tarkkanen, Helena | Helena Tarkkanen | Costume Designer | 1966 | 1 | |
| Tuschnerová, Inĕz | Inĕz Tuschnerová | Costume Designer | 1966 | 1 | |
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