| Unwin, Stephen | Stephen Unwin | Director, Translator | 1994 - 2013 | 59 | 1 |
| Utsi, Nils | Nils Utsi | Actor, Adaptation, Translator | 1968 - 2011 | 59 | 1 |
| Ulvestad, Amund | Amund Ulvestad | Sound Designer | 2018 - 2022 | 48 | |
| Urbanski, Oliver | Oliver Urbanski | Actor, Composer | 2004 - 2013 | 44 | 1 |
| Ullmann, Liv | Liv Ullmann | Actor | 1960 - 2006 | 43 | 1 |
| Uddén, Gunnar | Gunnar Uddén | Actor | 1965 - 2002 | 33 | 1 |
| Unser, Ines | Ines Unser | Costume Designer, Designer | 2006 | 32 | |
| Underferth, Jason | Jason Underferth | Director, Lighting Designer, Producer | 2004 - 2012 | 32 | |
| Ueda, Kuniyoshi | Kuniyoshi Ueda | Adaptation, Assistant Director, Director | 2005 - 2013 | 28 | 1 |
| Ulfsby, Erik | Erik Ulfsby | Actor, Adaptation, Director | 1992 - 2018 | 24 | 1 |
| Ulekleiv, Bjørn | Bjørn Ulekleiv | Actor | 1994 - 2013 | 18 | |
| Ulrich, Bernhard | Bernhard Ulrich | Actor | 2006 - 2008 | 16 | |
| Ulysse, Fred | Fred Ulysse | Actor | 2008 - 2009 | 16 | |
| Undisz, Sebastian | Sebastian Undisz | Actor, Composer | 2009 - 2011 | 16 | |
| Ueno, Yoshio | Yoshio Ueno | Actor | 2005 - 2013 | 14 | |
| Ulrichs, Carl | Carl Ulrichs | Director | 1898 - 1908 | 12 | |
| Uchiyama, Tsutomu | Tsutomu Uchiyama | Designer | 1989 - 2012 | 11 | |
| Ulekleiv, Silje | Silje Ulekleiv | Actor, Costume Designer, Designer | 1994 - 2010 | 11 | |
| Unda, Emilia | Emilia Unda | Actor | 1908 - 1914 | 10 | |
| Unruh, Ida | Ida Unruh | Actor | 1909 - 1925 | 10 | |
| Upton, Andrew | Andrew Upton | Adaptation, Translator | 2004 - 2018 | 10 | 1 |
| Ungár, Júlia | Júlia Ungár | Dramaturg | 1994 - 2016 | 10 | |
| Urra, Daniela | Daniela Urra | Actor | 2011 - 2013 | 10 | |
| Uebermuth, Helene | Helene Uebermuth | Actor | 1914 - 1927 | 9 | |
| Uritescu, Valentin | Valentin Uritescu | Actor | 1972 - 2004 | 9 | |
| Ussing, Olaf | Olaf Ussing | Actor | 1950 - 2003 | 9 | |
| Ujlaky, László | László Ujlaky | Actor | 1939 - 2002 | 8 | 1 |
| Underwood, Jill | Jill Underwood | Actor | 2002 - 2008 | 7 | 2 |
| Upendra, Sanjeeva | Sanjeeva Upendra | Actor | 2006 | 7 | |
| Uukkivi, Ivo | Ivo Uukkivi | Actor, Costume Designer | 1995 - 2019 | 7 | 1 |
| Uhlig, Karl | Karl Uhlig | Actor | 1914 - 1927 | 7 | |
| Urbánek, Karel | Karel Urbánek | Actor, Director | 1912 - 1933 | 7 | |
| Urbánková, Jarmila | Jarmila Urbánková | Actor | 1912 - 1966 | 7 | |
| Ullrichová, Daria | Daria Ullrichová | Adaptation, Dramaturg | 1988 - 1991 | 7 | |
| Urban, Dušan | Dušan Urban | Actor | 2009 - 2012 | 7 | |
| Uddin, Sardar Aftab | Sardar Aftab Uddin | Actor, Designer | 2000 - 2004 | 7 | |
| Uhe, Christopher | Christopher Uhe | Composer, Musical Director, Musician, Sound Designer | 2013 - 2022 | 7 | |
| Umseher, Rodrigo | Rodrigo Umseher | Actor | 2023 | 7 | |
| Unt, Mati | Mati Unt | Designer, Director, Sound Designer | 1984 - 2004 | 6 | 1 |
| Ulrich, Pauline | Pauline Ulrich | Actor | 1889 - 1906 | 6 | |
| Unitt, Edward G. | Edward G. Unitt | Designer | 1907 - 1910 | 6 | |
| Ulrici, Adalbert | Adalbert Ulrici | Actor, Director | 1909 - 1919 | 6 | |
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