| Urban, Julia | Julia Urban | Actor | 2002 - 2008 | 12 | 12 |
| Uter, Jürgen | Jürgen Uter | Actor | 1996 - 2009 | 10 | 10 |
| Underwood, Jill | Jill Underwood | Actor | 2002 - 2008 | 7 | 7 |
| Uukkivi, Ivo | Ivo Uukkivi | Actor, Costume Designer | 1995 - 2014 | 6 | 6 |
| Uihlein-Hartweg, Pia | Pia Uihlein-Hartweg | Actor | 2006 | 6 | 6 |
| Ulman, John | John Ulman | | | | 5 |
| Ursin, Clara, | Clara Ursin | Actor | 1861 - 1877 | 4 | 4 |
| Ulrich, Klaus-Dieter | Klaus-Dieter Ulrich | Actor | 1997 - 2014 | 4 | 4 |
| Urban, Jiri | Jiri Urban | | | | 4 |
| Unidos, Artistas | Artistas Unidos | | | | 2 |
| Urla, Joseph | Joseph Urla | Actor | 2006 | 1 | 1 |
| Ulrich, Luise | Luise Ulrich | Actor | 1944 | 1 | |
| Uchida, Reiko | Reiko Uchida | Actor | 1955 | 1 | |
| Uchiyama, Shun | Shun Uchiyama | Designer, Director, Translator | 1984 - 1986 | 3 | |
| Uda, Shozo, | Shozo Uda | Actor | 1913 - 1914 | 2 | |
| Uddén, Gunnar, | Gunnar Uddén | Actor | 1965 - 1998 | 33 | |
| Udvaros, Béla | Béla Udvaros | Director | 1971 | 2 | |
| Ueckermann, Anne-Britt | Anne-Britt Ueckermann | Actor | 1983 | 1 | |
| Ueda, Kuniyoshi, | Kuniyoshi Ueda | Adaptation, Director | 2005 - 2008 | 28 | |
| Uhlen, Gisela, | Gisela Uhlen | Actor | 1946 - 1983 | 4 | |
| Ukkonen, Riitta | Riitta Ukkonen | Designer | 2006 | 1 | |
| Ukmar, Berta | Berta Ukmar | Actor | 1979 | 1 | |
| Ulbrich, Maria | Maria Ulbrich | Actor | 1986 | 1 | |
| Ulfsby, Erik, | Erik Ulfsby | Actor, Adaptation, Director | 1992 - 2019 | 25 | |
| Ullmann, Helge, | Helge Ullmann | Designer | 1997 - 2013 | 2 | |
| Ullmann, Liv, | Liv Ullmann | Actor | 1960 - 2005 | 42 | |
| Ultaver, Ralf, | Ralf Ultaver | Actor | 1977 | 1 | |
| Umminger, Willy, | Willy Umminger | Actor, Director | 1919 - 1932 | 5 | |
| Unda, Emilia, | Emilia Unda | Actor | 1908 - 1912 | 10 | |
| Ungár, Kati | Kati Ungár | Actor | 1965 | 1 | |
| Unlimited, Guardian | Guardian Unlimited | | | | |
| Unruh, Dieter | Dieter Unruh | Actor | 1957 | 2 | |
| Unser, Ines, | Ines Unser | Costume Designer, Designer | 2006 | 32 | |
| Unt, Lii | Lii Unt | Mask Maker | 1995 | 1 | |
| Unt, Mati | Mati Unt | Designer, Director, Sound Designer | 1984 - 2004 | 6 | |
| Unterweger, Birgit | Birgit Unterweger | Actor | 2002 - 2007 | 3 | |
| Unwin, Stephen | Stephen Unwin | Director, Translator | 1994 - 2013 | 59 | |
| Upendra, Sanjeeva | Sanjeeva Upendra | Actor | 2006 | 7 | |
| Uray, Peter | Peter Uray | Actor | 1979 | 1 | |
| Urbič, Breda | Breda Urbič | Actor | 1951 | 2 | |
| Urmy, Ralph | Ralph Urmy | Actor, Director | 1929 - 1936 | 2 | |
| Urpelainen, Liisa, | Liisa Urpelainen | Adaptation | 1992 - 1994 | 2 | |
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