| Kostecka, Oliver | Oliver Kostecka | Designer | 2004 | 2 | 1 |
| Korčák, Jakub | Jakub Korčák | Adaptation, Director | 2000 | 2 | |
| Keskinen, Jouko | Jouko Keskinen | Actor | 2005 | 2 | |
| Kaehler, Jörg | Jörg Kaehler | Actor, Director | 2005 | 2 | |
| Krantaï, Nikoleta | Nikoleta Krantaï | Actor | 2005 | 2 | |
| Kostakis, Iraklis | Iraklis Kostakis | Actor | 2005 | 2 | |
| Konečný, Emil | Emil Konečný | Actor | 1978 - 1993 | 2 | |
| Kubíček, František | František Kubíček | Actor | 1965 - 1978 | 2 | |
| Kovář, Čestmír | Čestmír Kovář | Actor, Director | 1957 | 2 | |
| Kaasinen, Eevaleena | Eevaleena Kaasinen | Actor | 2005 | 2 | |
| Koivu, Liisa | Liisa Koivu | Actor | 2005 | 2 | |
| Koukal, Bohumír | Bohumír Koukal | Actor | 1941 - 1955 | 2 | 1 |
| Kloepfer, Martin | Martin Kloepfer | Adaptation, Director | 2005 | 2 | |
| Kariyawasam, Piyal | Piyal Kariyawasam | Director | 2005 - 2006 | 2 | |
| Kemp, Edward | Edward Kemp | Dramaturg | 2005 - 2006 | 2 | |
| Knight, Julia | Julia Knight | Musician | 2005 - 2006 | 2 | |
| Kohlhase, - | - Kohlhase | Actor | 2001 - 2002 | 2 | |
| Karaça, Serdal | Serdal Karaça | Actor | 2001 - 2002 | 2 | |
| Kovářík, F. | F. Kovářík | Actor | 1943 | 2 | |
| Kolátor, Vladimír | Vladimír Kolátor | Adaptation, Director | 1943 | 2 | |
| Kai, Zhang | Zhang Kai | Designer | 2005 | 2 | |
| Kladivová, Irena | Irena Kladivová | Dancer | 1941 | 2 | |
| Kristić, Doris | Doris Kristić | Costume Designer | 2005 - 2006 | 2 | |
| Katušić Balen, Anka | Anka Katušić Balen | Translator | 2005 - 2006 | 2 | |
| Kerner, Erika | Erika Kerner | Actor | 2005 - 2006 | 2 | |
| Kuhlmann, Saskia | Saskia Kuhlmann | Director | 2005 - 2006 | 2 | |
| Kerzmann, Anita | Anita Kerzmann | Adaptation, Dramaturg | 2005 | 2 | 1 |
| Kukkola, Katja | Katja Kukkola | Actor | 2001 | 2 | 1 |
| Kaumanns, Mechthild | Mechthild Kaumanns | Costume Designer | 2005 - 2006 | 2 | |
| Kučera, Antonín | Antonín Kučera | Translator | 1940 | 2 | |
| Karen, Bedřich | Bedřich Karen | Actor | 1940 | 2 | |
| Krejza, Jiří | Jiří Krejza | Actor | 1940 | 2 | |
| Kollár, Viktor | Viktor Kollár | Director | 2011 | 2 | |
| Kuykendall, Jason | Jason Kuykendall | Actor | 2001 | 2 | 1 |
| Kuźmiński, Marcin | Marcin Kuźmiński | Actor | 2007 - 2012 | 2 | |
| Konopiński, Maciej | Maciej Konopiński | Actor | 2011 - 2022 | 2 | |
| Kutnik, Marek | Marek Kutnik | Lighting Designer | 2009 | 2 | |
| Kireńczuk, Tomasz | Tomasz Kireńczuk | Dramaturg | 2009 | 2 | 1 |
| Krafftówna, Barbara | Barbara Krafftówna | Actor | 2007 | 2 | |
| Kominek, Karolina | Karolina Kominek | Actor | 2007 - 2009 | 2 | |
| Karczmarska, Anna Maria | Anna Maria Karczmarska | Costume Designer, Designer | 2006 | 2 | |
| Krawczuk, Adam | Adam Krawczuk | Actor | 2005 - 2007 | 2 | |
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