| 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 | |
| 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 | |
| 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 | |
| Knabl, Nikolaus | Nikolaus Knabl | Sound Designer | 2014 - 2016 | 3 | |
| Kelly, Daren | Daren Kelly | Actor | 1994 - 2001 | 3 | |
| 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 | |
| Kratz, Steve | Steve Kratz | Actor | 1994 - 2007 | 3 | |
| Kaletsanos, Ieronimos | Ieronimos Kaletsanos | Actor | 2014 - 2020 | 3 | |
| 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 | |
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