| Kalaitzi, Wicki | Wicki Kalaitzi | Actor | 1995 | 5 | |
| Kirchhoff, Jürgen | Jürgen Kirchhoff | Actor | 1995 - 2005 | 5 | 1 |
| Kukla, Otto | Otto Kukla | Actor, Designer, Director | 2003 - 2013 | 5 | 1 |
| Karadeniz, Özgür | Özgür Karadeniz | Actor | 2007 - 2014 | 5 | |
| Keiff, Caroline | Caroline Keiff | Actor | 2004 - 2005 | 5 | |
| Katrakis, Manos | Manos Katrakis | Actor | 1935 - 1985 | 5 | |
| Kyriakou, Anna | Anna Kyriakou | Actor | 1966 - 1985 | 5 | |
| Kranas, Giannis | Giannis Kranas | Actor | 2002 - 2008 | 5 | |
| Kemény, László | László Kemény | Actor | 1925 - 1958 | 5 | |
| Kloda, James | James Kloda | Actor, Lighting Designer | 2001 | 5 | |
| Krstić, Milorad | Milorad Krstić | Designer | 2012 - 2013 | 5 | |
| Kudláč, Jakub | Jakub Kudláč | Composer | 2010 - 2011 | 5 | |
| Krämer-Jenster, Benjamin | Benjamin Krämer-Jenster | Actor | 2001 | 5 | |
| Kotterba, Horst | Horst Kotterba | Actor | 2004 - 2008 | 5 | |
| König, David | David König | Costume Designer, Designer | 2004 - 2010 | 5 | 1 |
| Krogshus, Øystein | Øystein Krogshus | Actor | 2004 | 5 | |
| Krief, Norah | Norah Krief | Actor | 2005 | 5 | 1 |
| Kingston, Michael | Michael Kingston | Actor | 2005 - 2018 | 5 | |
| Kuula, Anni | Anni Kuula | Actor | 2005 | 5 | |
| Knödler, Carsten | Carsten Knödler | Director | 2005 - 2015 | 5 | |
| Knödler, Ricarda | Ricarda Knödler | Costume Designer | 2005 - 2015 | 5 | |
| Kamolwat, Manutsawin | Manutsawin Kamolwat | Actor | 2005 | 5 | |
| Klimeš, Antonín | Antonín Klimeš | Actor | 1933 | 5 | |
| Kukulies, Martin | Martin Kukulies | Costume Designer, Designer | 1998 - 2001 | 5 | |
| Krajewski-Bola, Andrzej, B. | Andrzej B. Krajewski-Bola | Translator | 2005 - 2012 | 5 | 1 |
| Kierzkowska, Maria | Maria Kierzkowska | Actor | 2009 - 2016 | 5 | |
| Kaszewska, Kinga | Kinga Kaszewska | Actor | 1999 | 5 | |
| Knaack, Peter | Peter Knaack | Actor | 2005 - 2017 | 5 | 1 |
| Kurzwernhart, Alexander | Alexander Kurzwernhart | Actor | 1989 | 5 | |
| Khondker, Ashish | Ashish Khondker | Actor, Director | 2006 | 5 | |
| Kulle, Hanna | Hanna Kulle | Actor | 2006 | 5 | 1 |
| Kerim, Mohamed Abdedl | Mohamed Abdedl Kerim | Actor | 2006 | 5 | |
| Khalef, Aza | Aza Khalef | Actor | 2006 | 5 | |
| Khalef, Ahmed | Ahmed Khalef | Composer | 2006 | 5 | |
| Kumar, Sikander | Sikandra Kumar | Actor | 2015 | 5 | |
| Kaur, Gurinderjot | Gurinderjot Kaur | Actor | 2015 | 5 | |
| Kamal, Rana, Santosh | Rana Santosh Kamal | Actor | 2015 | 5 | |
| Knebel, Hans Dieter | Hans Dieter Knebel | Actor | 1994 - 2017 | 5 | |
| Krisch, Johannes | Johannes Krisch | Actor | 1994 - 2012 | 5 | 2 |
| Kosel, David | David Kosel | Actor | 2009 - 2010 | 5 | 2 |
| Kuhn, Timo | Timo Kuhn | Composer | 2010 - 2012 | 5 | |
| Kica, Janusz | Janusz Kica | Director | 2009 - 2016 | 5 | 1 |
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