| Ulman, John | John Ulman | | | | 5 |
| Urban, Jiri | Jiri Urban | | | | 4 |
| Urban, Julia | Julia Urban (Julia Urban) | Actor | 2002 - 2008 | 4 | 3 |
| Uihlein-Hartweg, Pia | Pia Uihlein-Hartweg | Actor | 2006 | 2 | 3 |
| Uter, Jürgen | Jürgen Uter | Actor | 1996 - 2009 | 5 | 2 |
| Unidos, Artistas | Artistas Unidos | | | | 2 |
| Underwood, Jill | Jill Underwood (Jill Underwood) | Actor | 2002 - 2008 | 7 | 1 |
| Uukkivi, Ivo | Ivo Uukkivi (Ivo Uukkivi) | Actor, Costume Designer | 1995 - 2014 | 6 | 1 |
| Ursin, Clara | Clara Ursin (Clara Ursin) | Actor | 1861 - 1876 | 4 | 1 |
| Ulrich, Klaus-Dieter | Klaus-Dieter Ulrich | Actor | 1997 - 2014 | 4 | 1 |
| Uuspõld, Jan | Jan Uuspõld | Actor | 2003 | 1 | 1 |
| Urla, Joseph | Joseph Urla | Actor | 2006 | 1 | 1 |
| Utkilen, Silje | Silje Utkilen | | | | 1 |
| Ulrich, Luise | Luise Ulrich (Luise Ulrich) | Actor | 1944 | 1 | |
| Uchida, Reiko | Reiko Uchida (Reiko Uchida) | Actor | 1955 | 1 | |
| Uchiyama, Shun | Shun Uchiyama (Shun Uchiyama) | Designer, Director, Translator | 1984 - 1986 | 3 | |
| Uda, Shozo | Shozo Uda (Shozo Uda) | Actor | 1913 - 1914 | 2 | |
| Uddén, Gunnar | Gunnar Uddén (Gunnar Uddén) | Actor | 1965 - 2002 | 33 | |
| Udvaros, Béla | Béla Udvaros (Béla Udvaros) | Director | 1971 - 1999 | 2 | |
| Ueckermann, Anne-Britt | Anne-Britt Ueckermann (Anne-Britt Ueckermann) | Actor | 1983 | 1 | |
| Ueda, Kuniyoshi | Kuniyoshi Ueda (Kuniyoshi Ueda) | Adaptation, Assistant Director, Director | 2005 - 2013 | 28 | |
| Uhlen, Gisela | Gisela Uhlen (Gisela Uhlen) | Actor | 1946 - 1993 | 4 | |
| Ukkonen, Riitta | Riitta Ukkonen (Riitta Ukkonen) | Designer | 2006 | 1 | |
| Ukmar, Berta | Berta Ukmar (Berta Ukmar) | Actor | 1979 | 1 | |
| Ulbrich, Maria | Maria Ulbrich (Maria Ulbrich) | Actor | 1986 | 1 | |
| Ulfsby, Erik | Erik Ulfsby (Erik Ulfsby) | Actor, Adaptation, Director | 1992 - 2018 | 24 | |
| Ullmann, Helge | Helge Ullmann (Helge Ullmann) | Designer | 1997 - 2012 | 2 | |
| Ullmann, Liv | Liv Ullmann (Liv Ullmann) | Actor | 1960 - 2006 | 43 | |
| Ultaver, Ralf | Ralf Ultaver (Ralf Ultaver) | Actor | 1977 | 1 | |
| Umminger, Willy | Willy Umminger (Willy Umminger) | Actor, Director | 1919 - 1931 | 5 | |
| Unda, Emilia | Emilia Unda (Emilia Unda) | Actor | 1908 - 1914 | 10 | |
| Ungár, Kati | Kati Ungár (Kati Ungár) | Actor | 1965 | 1 | |
| Unlimited, Guardian | Guardian Unlimited (Guardian Unlimited) | | | | |
| Unruh, Dieter | Dieter Unruh (Dieter Unruh) | Actor | 1957 - 1988 | 2 | |
| Unser, Ines | Ines Unser (Ines Unser) | Costume Designer, Designer | 2006 | 32 | |
| Unt, Lii | Lii Unt (Lii Unt) | Mask Maker | 1995 | 1 | |
| Unt, Mati | Mati Unt (Mati Unt) | Designer, Director, Sound Designer | 1984 - 2004 | 6 | |
| Unterweger, Birgit | Birgit Unterweger (Birgit Unterweger) | Actor | 2002 - 2015 | 3 | |
| Unwin, Stephen | Stephen Unwin (Stephen Unwin) | Director, Translator | 1994 - 2013 | 59 | |
| Upendra, Sanjeeva | Sanjeeva Upendra (Sanjeeva Upendra) | Actor | 2006 | 7 | |
| Uray, Peter | Peter Uray (Peter Uray) | Actor | 1979 | 1 | |
| Urbič, Breda | Breda Urbič (Breda Urbič) | Actor | 1951 - 1979 | 2 | |
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