| Kawser, - | - Kawser | Lighting Designer | 2006 | 3 | |
| Kleinwechter, Erwin | Erwin Kleinwechter | Actor | 2006 | 3 | |
| Klesse, Thomas | Thomas Klesse | Actor | 2007 | 3 | 3 |
| Koganei, Atsushi | Atsushi Koganei | Actor | 2006 | 3 | |
| Kawanaka, Kenjiro | Kenjiro Kawanaka | Actor | 2006 | 3 | |
| Kamogawa, Tenshi | Tenshi Kamogawa | Actor | 2006 | 3 | |
| Križan, Martin | Martin Križan | Actor | 2006 - 2008 | 3 | |
| Konečná, Zuzana | Zuzana Konečná | Actor | 2006 - 2008 | 3 | |
| Kuzmanich, Roberto | Roberto Kuzmanich | Director, Lighting Designer, Sound Designer | 2006 | 3 | |
| Kuzmany, Elfriede | Elfriede Kuzmany | Actor | 1961 | 3 | |
| Kimbrell, Marketta | Marketta Kimbrell | Director | 1989 - 2013 | 3 | |
| Klammer, Michael | Michael Klammer | Actor | 2006 - 2008 | 3 | |
| Kundziņa, Ieva | Ieva Kundziņa | Costume Designer | 2008 - 2011 | 3 | |
| Kliegel, Leo | Leo Kliegel | Designer | 1943 | 3 | |
| Korrontay, Michael | Michael Korrontay | Actor | 1955 | 3 | |
| Kumar, Vivek | Vivek Kumar | Actor | 2015 | 3 | |
| Kühne, Wolfgang | Wolfgang Kühne | Actor | 1955 | 3 | |
| Klein, Hans Joachim | Hans Joachim Klein | Actor, Director | 1961 | 3 | |
| Kaulbach, Margret | Margret Kaulbach | Costume Designer | 1954 | 3 | |
| Kühn, Vincent | Vincent Kühn | Actor | 2009 - 2010 | 3 | |
| König, Ulrich | Ulrich König | Composer | 2009 - 2010 | 3 | |
| Kotzur, Sabine | Sabine Kotzur | Actor | 2009 - 2010 | 3 | |
| Kielaitė, Donata | Donata Kielaitė | Actor | 2009 - 2011 | 3 | |
| Kyun, Cheong Hae | Cheong Hae Kyun | Actor | 2009 - 2012 | 3 | |
| Koon, Yeo Kook | Yeo Kook Koon | Lighting Designer | 2009 - 2012 | 3 | |
| Kraš, Eva | Eva Kraš | Actor | 2009 | 3 | |
| Kuchenbuch, Roland | Roland Kuchenbuch | Actor | 2009 - 2013 | 3 | |
| Kataoka, Sachiko | Sachiko Kataoka | Actor | 2009 | 3 | |
| Kainulainen, Tuuli | Tuuli Kainulainen | Actor | 2009 - 2010 | 3 | |
| Kaikkonen, Vesa | Vesa Kaikkonen | Actor | 2009 - 2010 | 3 | |
| Knipp, Joe | Joe Knipp | Director | 2013 | 3 | |
| Kahnwald, Nils | Nils Kahnwald | Actor | 2010 - 2013 | 3 | |
| Kling, Esther | Esther Kling | Costume Designer, Mask Maker | 1963 | 3 | |
| Koon, Robert | Robert Koon | Actor, Lighting Designer | 1948 - 2018 | 3 | |
| Kolasis, Vyron | Vyron Kolasis | Actor, Composer | 2011 - 2012 | 3 | |
| Kahle, Janko | Janko Kahle | Actor | 2013 - 2015 | 3 | |
| Krause, Matti | Matti Krause | Actor | 2012 | 3 | 3 |
| Kilian, Jens | Jens Kilian | Costume Designer, Designer | 2000 - 2001 | 3 | |
| Karjala, Jodi | Jodi Karjala | Costume Designer, Designer | 2011 - 2017 | 3 | |
| Karel, Mike | Mike Karel | Actor | 1964 | 3 | |
| Kedrakas, Nasos | Nasos Kedrakas | Actor | 1961 - 1990 | 3 | |
| Kimmelman, Vladimir | Vladimir Kimmelman | Actor | 2012 | 3 | 3 |
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