| Kicsid, Gizella | Gizella Kicsid | Actor | 2017 - 2019 | 9 | |
| Klykov, Vladimir | Vladimir Klykov | Sound Designer | 2017 - 2019 | 9 | |
| Kovács, Kinga | Kinga Kovács | Assistant Director | 2017 - 2019 | 9 | |
| Kauppinen, Riku | Riku Kauppinen (Riku Kauppinen) | Lighting Designer, Sound Designer | 1999 | 10 | |
| Koener, Claude | Claude Koener (Claude Koener) | Actor | 1975 - 1977 | 10 | |
| Kruppa, Hannes | Hannes Kruppa (Hannes Kruppa) | Actor | 1975 - 1996 | 10 | |
| Kurisu, Shoji | Shoji Kurisu (Shoji Kurisu) | Actor | 2001 - 2009 | 10 | |
| Klenk, Thomas | Thomas Klenk (Thomas Klenk) | Actor | 1989 - 2011 | 10 | 1 |
| Kinmansson, Gustaf | Gustaf Kinmansson (Gustaf Kinmansson) | Actor | 1869 - 1881 | 10 | |
| Kongsted, Mr. | Mr. Kongsted (Mr. Kongsted) | Actor | 1889 | 10 | |
| Krause, Carl | Carl Krause | Actor | 1889 - 1897 | 10 | |
| Kratz, Anna | Anna Kratz (Anna Kratz) | Actor | 1894 - 1916 | 10 | |
| Kierulf, Mr. | Mr. Kierulf (Mr. Kierulf) | Actor | 1895 - 1896 | 10 | |
| Krampert, Fritz | Fritz Krampert (Fritz Krampert) | Actor | 1902 - 1928 | 10 | |
| Koškins, Kristaps | Kristaps Koškins (Kristaps Koškins) | Actor, Director | 1907 - 1918 | 10 | |
| Kleiven, Jostein | Jostein Kleiven (Jostein Kleiven) | Actor | 1989 - 1998 | 10 | |
| Kringstad, Åse | Åse Kringstad (Åse Kringstad) | Actor | 1994 - 1998 | 10 | |
| Knutsen, Kaja | Kaja Knutsen (Kaja Knutsen) | Actor | 1995 - 2001 | 10 | |
| Kristiansen, Liz Anita | Liz Anita Kristiansen (Liz Anita Kristiansen) | Actor | 1996 - 2000 | 10 | |
| Karlsson, Robin | Robin Karlsson (Robin Karlsson) | Mask Maker | 2008 | 10 | |
| Kasdaglis, Giannis | Giannis Kasdaglis | Actor | 1973 - 1985 | 10 | |
| Kern, Pouel | Pouel Kern | Actor | 1933 - 1986 | 10 | |
| Khetib, Miloud | Miloud Khetib | Actor | 1981 | 10 | |
| Kämmerer, Erich | Erich Kämmerer | Actor | 1900 | 10 | |
| Kalman, Jean | Jean Kalman | Lighting Designer | 1991 - 2011 | 10 | |
| Kempf, Arno | Arno Kempf | Actor | 1991 - 2016 | 10 | |
| Kiepe, Marcus | Marcus Kiepe | Actor | 1994 - 2005 | 10 | 1 |
| Khan, Dipankar | Dipankar Khan | Actor, Director | 1996 - 2007 | 10 | |
| Koch, Roland | Roland Koch | Actor | 1997 - 2017 | 10 | |
| Kettley, Steve | Steve Kettley | Composer, Musician | 2004 | 10 | |
| Kahn, Catherine | Catherine Kahn | Designer, Director | 2004 - 2005 | 10 | 1 |
| Keitpanyaopart, Sakchai | Sakchai Keitpanyaopart | Actor | 2005 | 10 | |
| Kress, Adrienne | Adrienne Kress | Actor | 2005 - 2007 | 10 | |
| König, Anne-Sylvie | Anne-Sylvie König | Adaptation, Dramaturg | 2006 - 2007 | 10 | |
| Kluth, Daniel | Daniel Kluth | Actor | 2006 | 10 | |
| Kirchstein, Rüdiger | Rüdiger Kirchstein | Actor | 1971 - 1973 | 10 | |
| Kennedy, Susanne | Susanne Kennedy | Adaptation, Director | 2008 - 2012 | 10 | |
| Köhler, Florian | Florian Köhler | Actor | 2011 - 2013 | 10 | |
| Koht, Bjarne | Bjarne Koht | Actor | 1934 - 1961 | 10 | |
| Karlsen, Jesper, B. | Jesper B. Karlsen | Adaptation, Dramaturg | 2013 - 2014 | 10 | |
| Klata, Jan | Jan Klata | Director | 2015 - 2016 | 10 | |
| Kruszelnicki, Paweł | Paweł Kruszelnicki | Actor | 2015 - 2016 | 10 | |
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