| 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 | |
| Kosowski, Zbigniew | Zbigniew Kosowski | Actor | 2015 - 2016 | 10 | |
| Komorek, Ania | Ania Komorek | Actor | 2015 - 2016 | 10 | |
| Kavvadas, Nikos | Nikos Kavvadas | Actor | 1981 | 10 | |
| Kvitvik, Lena, Jacobsen | Lena Jacobsen Kvitvik | Actor | 2018 | 10 | |
| Kowalski, Władysław | Władysław Kowalski | Actor | 1972 - 2006 | 9 | |
| Kalser, Erwin, | Erwin Kalser | Actor, Director | 1914 - 1950 | 9 | |
| Kaghanovitch, Peter | Peter Kaghanovitch | Actor | 1997 - 2009 | 9 | |
| Köhler, Henning, | Henning Köhler | Actor | 1974 - 1993 | 9 | |
| Kotarbiński, Józef, | Józef Kotarbiński | Actor, Director | 1882 - 1908 | 9 | |
| Kreindl, Werner, | Werner Kreindl | Actor | 1972 - 2003 | 9 | |
| Kreutz, Sebastian | Sebastian Kreutz | Actor | 2004 - 2005 | 9 | |
| Kriegeskotte, Hedi | Hedi Kriegeskotte | Actor | 1973 - 2014 | 9 | |
| Kustermann, Manuela | Manuela Kustermann | Actor | 1981 - 1993 | 9 | |
| Kortner, Fritz, | Fritz Kortner | Actor, Adaptation, Director | 1923 - 1964 | 9 | 1 |
| Keller, Eva Maria | Eva Maria Keller | Actor | 2003 - 2013 | 9 | 2 |
| Kachel-Bender, Luise, | Luise Kachel-Bender | Actor | 1891 - 1905 | 9 | |
| Knudsen, Ove, | Ove Knudsen | Actor | 1899 - 1904 | 9 | |
| Kapila, Sohn, | Sohn Kapila | Actor | 2006 | 9 | |
| Kronacher, Dr. Alwin, | Alwin Kronacher (Dr. Alwin Kronacher) | Director | 1911 - 1925 | 9 | |
| Knuth, Gustav, | Gustav Knuth | Actor | 1924 - 1964 | 9 | |
| Krastev, Dr. Krastjo, | Krastjo Krastev (Dr. Krastjo Krastev) | Actor, Translator | 1905 - 1996 | 9 | |
| Kingdon, Frank, | Frank Kingdon | Actor | 1906 - 1907 | 9 | |
| Kristiansen, Thor Inge, | Thor Inge Kristiansen | Actor | 1949 - 1974 | 9 | |
| Kent, Jonathan, | Jonathan Kent | Actor, Director | 1977 - 2019 | 9 | |
| Korstad, Liv Jorunn, | Liv Jorunn Korstad | Actor | 1994 - 2001 | 9 | |
| Krook, Margaretha, | Margaretha Krook | Actor | 1950 - 1997 | 9 | |
| Kosmo, Ingebjørg, | Ingebjørg Kosmo | Actor | 2001 - 2014 | 9 | |
| Kolaas, Harald, | Harald Kolaas | Actor | 2009 - 2015 | 9 | |
| Klouman, Borghild | Borghild Klouman | Actor | 1928 - 1931 | 9 | |
| Keresztes, Tamás | Tamás Keresztes | Actor | 2007 - 2019 | 9 | |
| Kurze, Günter | Günter Kurze | Actor | 1972 - 1995 | 9 | |
| Kitson, Barbara | Barbara Kitson | Actor, Dancer | 1923 - 1924 | 9 | |
| Konstantopoulos, Christos | Christos Konstantopoulos | Actor | 1985 | 9 | |
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