| Kunze, Rüdiger Walter | Rüdiger Walter Kunze | Actor, Director | 1991 - 2004 | 3 | |
| Kerssenbrock, Verena, von | Verena von Kerssenbrock | Designer | 1991 | 3 | |
| Krüger, Christiana | Christiana Krüger | Actor | 1989 - 1992 | 3 | |
| Kellner, Helmut | Helmut Kellner | Actor | 1991 | 3 | |
| Kossowsky, Jorge | Jorge Kossowsky | Assistant Director, Director | 1952 - 1956 | 3 | |
| Karsten, Fred | Fred Karsten | Actor | 1956 - 1963 | 3 | |
| Kroll, Monika | Monika Kroll | Actor | 1992 - 2016 | 3 | 1 |
| Kurosu, Hanako | Hanako Kurosu | Costume Designer | 1992 - 1994 | 3 | |
| Kaila, Marketta | Marketta Kaila | Actor, Dancer | 1992 - 2006 | 3 | |
| Kuple, Dina | Dina Kuple | Actor | 1964 - 1993 | 3 | 1 |
| Kováts, Adél | Adél Kováts | Actor | 1993 - 2008 | 3 | 1 |
| Katzer, Dorothea | Dorothea Katzer | Costume Designer | 1993 - 2005 | 3 | |
| Kwakkelstein, Willem | Willem Kwakkelstein | Actor | 1993 - 2004 | 3 | |
| Kallin, Anna Kristina | Anna Kristina Kallin | Actor | 1993 | 3 | |
| Kovács, András, Éry | András Éry Kovács | Adaptation, Designer, Director | 2006 | 3 | |
| Knabl, Nikolaus | Nikolaus Knabl | Sound Designer | 2014 - 2016 | 3 | |
| Kelly, Daren | Daren Kelly | Actor | 1994 - 2001 | 3 | 1 |
| Kilburger, Hans Joachim | Hans Joachim Kilburger | Actor | 1976 - 1982 | 3 | |
| Kühnen, Maria | Maria Kühnen | Actor | 1971 - 1982 | 3 | |
| Karazisis, Akylas | Akylas Karazisis | Actor | 1994 - 2015 | 3 | |
| Kouki, Tapio | Tapio Kouki | Actor | 1967 - 1994 | 3 | |
| Kaethner, Sigrun | Sigrun Kaethner | Actor | 1982 - 1998 | 3 | |
| Konstantinov, Irinej | Irinej Konstantinov (Ириней Константинов) | Actor | 1982 - 2023 | 3 | |
| Kratz, Steve | Steve Kratz | Actor | 1994 - 2007 | 3 | 1 |
| Kaňkovský, Václav | Václav Kaňkovský | Actor | 1979 - 2000 | 3 | |
| Kairisa, Astrida | Astrida Kairisa | Actor | 1994 - 2010 | 3 | |
| Kuisma, Katariina | Katariina Kuisma | Actor, Dancer | 1994 | 3 | |
| Karge, Jessica | Jessica Karge | Costume Designer | 1994 - 2018 | 3 | |
| Kangur, Guido | Guido Kangur | Actor | 1997 - 2022 | 3 | |
| Kämpfer, Christian | Christian Kämpfer | Actor | 1997 - 2017 | 3 | |
| König, Klaus-Dieter | Klaus-Dieter König | Actor | 1980 - 2002 | 3 | |
| Kissel, Hiltrud | Hiltrud Kissel | Director, Dramaturg | 1995 - 1996 | 3 | |
| Krawczyk, Jan | Jan Krawczyk | Actor | 1996 - 2006 | 3 | 1 |
| Kőmíves, Mihály | Mihály Kőmíves | Actor | 1965 - 1996 | 3 | |
| Kendall, Merelina | Merelina Kendall | Actor | 1996 | 3 | |
| Krantz, Thomas | Thomas Krantz | Actor, Musician | 1997 | 3 | |
| Kuhl, Jochen | Jochen Kuhl | Actor | 1971 - 2011 | 3 | |
| Kilty, Jerome | Jerome Kilty | Actor | 1949 - 1996 | 3 | |
| Kargerová, Veronika | Veronika Kargerová | Actor | 1996 - 2002 | 3 | |
| Kramer, Uwe | Uwe Kramer | Actor | 1995 | 3 | |
| Klusák, Jan | Jan Klusák | Composer | 1996 - 2002 | 3 | |
| Kaleta, Zbigniew, W. | Zbigniew W. Kaleta | Actor | 1996 | 3 | |
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