| Kabler, Wolf-Dieter | Wolf-Dieter Kabler | Actor | 1991 - 2008 | 3 | |
| Kechagias, Angelos | Angelos Kechagias | Actor | 2009 - 2010 | 3 | |
| Kičiňová, Miriam | Miriam Kičiňová | Dramaturg | 2009 - 2011 | 3 | |
| Kayser, Karl | Karl Kayser | Adaptation, Director | 1964 - 1984 | 3 | |
| Kehrstephan, Evi | Evi Kehrstephan | Actor | 2012 - 2013 | 3 | 4 |
| Körber, Claudius | Claudius Körber | Actor | 2011 - 2023 | 3 | |
| Kaume, Niklas | Niklas Kaume | Actor | 2013 | 3 | |
| Kreckel, Paul | Paul Kreckel | Actor | 2013 | 3 | |
| Kenward, Laura | Laura Kenward | Actor | 2013 - 2014 | 3 | |
| Kerč, Boris | Boris Kerč | Actor | 1986 - 2002 | 3 | |
| Kirmse, Annette | Annette Kirmse | Actor | 1985 | 3 | |
| Koch, Franziska | Franziska Koch | Actor | 1906 - 1907 | 3 | |
| Karm, Benny | Benny Karm | Designer | 1986 - 1987 | 3 | |
| Karm, Ingela | Ingela Karm | Designer | 1986 - 1987 | 3 | |
| Körner, Roland | Roland Körner | Actor, Adaptation, Designer | 1987 | 3 | |
| Kavanagh, John | John Kavanagh | Actor | 1984 - 2011 | 3 | 1 |
| Kattimani, Hulugappa | Hulugappa Kattimani | Actor | 1995 | 3 | |
| Kusnoor, Santhosh Kumar | Santhosh Kumar Kusnoor | Actor | 1995 | 3 | |
| Kilian, Sven | Sven Kilian | Actor | 1984 | 3 | |
| Kelly, David | David Kelly | Actor | 1989 - 1990 | 3 | 1 |
| Krishnaprasad, K. P. | K. P. Krishnaprasad | Actor | 1995 | 3 | |
| Kallaanvaara, Michael | Michael Kallaanvaara | Actor | 1989 - 1998 | 3 | |
| Kleiven, Kari, Ulfsnes | Kari Ulfsnes Kleiven | Actor | 2014 | 3 | |
| Kouwenberg, Jasper, Klein | Jasper Klein Kouwenberg | Actor | 1991 | 3 | |
| Krogh, Guy | Guy Krogh | Designer | 1956 - 1988 | 3 | |
| Krogh, Line | Line Krogh | Director | 1977 - 1988 | 3 | |
| Krystoph, Volker | Volker Krystoph | Actor | 1958 - 1988 | 3 | |
| 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 | |
| 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 | |
| Kováts, Adél | Adél Kováts | Actor | 1993 - 2008 | 3 | |
| 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 | |
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