| Ulleri, Ria | Ria Ulleri | Actor | 2003 | 4 | |
| Udovicic, Miodrag | Miodrag Udovicic | Musical Director | 2003 | 1 | |
| Underwood, Kristen | Kristen Underwood | Actor, Director | 1999 - 2001 | 4 | |
| Uris, Victoria | Victoria Uris | Choreographer | 2001 | 1 | |
| Ulmu, Bogdan | Bogdan Ulmu | Adaptation, Director | 2003 | 2 | |
| Unt, Katariina | Katariina Unt | Actor | 2014 | 1 | |
| Urhausen, Brigitte | Brigitte Urhausen | Actor | 2003 | 1 | |
| Unger, Pálma | Pálma Unger | Actor | 1976 | 2 | |
| Ullrich, Mattie | Mattie Ullrich | Costume Designer | 2003 | 1 | |
| Ugón, Alvaro Armand | Alvaro Armand Ugón | Actor | 2001 | 1 | |
| Uenishi, o.blaat (Keiko) | o.blaat (Keiko) Uenishi | Sound Designer | 2003 | 1 | |
| Udvaros, Dorottya | Dorottya Udvaros | Actor | 2012 | 1 | |
| Underbakke, Ryan | Ryan Underbakke | Actor | 2003 | 1 | |
| Ustalov, Denis | Denis Ustalov | Actor | 2003 - 2005 | 2 | |
| Urban, Dušan | Dušan Urban | Actor | 2009 - 2012 | 7 | |
| Underferth, Jason | Jason Underferth | Director, Lighting Designer, Producer | 2004 - 2012 | 32 | |
| Uitdehaag, Antoine | Antoine Uitdehaag | Director | 2004 | 1 | |
| Ullmann, Johanna | Johanna Ullmann | Actor | 2004 | 1 | |
| Udbye, Anne Isabel | Anne Isabel Udbye | Actor | 2004 | 1 | |
| Uddin, Sardar Aftab | Sardar Aftab Uddin | Actor, Designer | 2000 - 2004 | 7 | |
| Uddin, Jasim | Jasim Uddin | Lighting Designer | 2004 | 1 | |
| Ukaj, Alan | Alan Ukaj | Actor | 2013 - 2015 | 3 | |
| Utschik, Willy | Willy Utschik | Actor | 2005 | 1 | |
| Uthumma, Sawanee | Sawanee Uthumma | Actor | 2005 | 5 | |
| Ueno, Yoshio | Yoshio Ueno | Actor | 2005 - 2013 | 14 | |
| Utrobina, Marija | Marija Utrobina | Designer | 2005 | 1 | |
| Uzun, Eralp | Eralp Uzun | Actor | 2001 - 2002 | 2 | |
| Utter, Paul | Paul Utter | Actor | 2001 | 1 | |
| Ubysz, Michał Marek | Michał Marek Ubysz | Actor | 2009 - 2016 | 5 | |
| Ulicka-Pyda, Katarzyna | Katarzyna Ulicka-Pyda | Actor | 1999 | 5 | |
| Urs, Nicolae | Nicolae Urs | Actor | 1977 | 3 | |
| Udrescu, Cezarina | Cezarina Udrescu | Adaptation, Director | 2009 | 2 | |
| Uddin Ahmed, Shahid | Shahid Uddin Ahmed | Actor | 2006 | 1 | |
| Uglár, Csaba | Csaba Uglár | Designer | 2015 | 1 | |
| Ursachi, Şerban | Şerban Ursachi | Actor, Composer | 2009 | 2 | |
| Ursu, Adina | Adina Ursu | Actor | 2009 | 2 | |
| Unterman, Ian | Ian Unterman | Actor | 2006 | 1 | |
| Ullah Nannu, Hedayet | Hedayet Ullah Nannu | Actor | 2006 | 2 | |
| Urner, Rahel | Rahel Urner | Actor | 2006 | 1 | |
| Uffelmann, Katja | Katja Uffelmann | Actor | 2006 | 1 | |
| Utoh-Ezeajugh, Tracie, C. | Tracie C. Utoh-Ezeajugh | Adaptation, Producer | 2002 | 2 | |
| Uta Merkert, Ellen | Ellen Uta Merkert | Actor | 2006 | 1 | |
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