| Katušić Balen, Anka | Anka Katušić Balen | Translator | 2005 - 2006 | 2 | |
| Kobelsky, Beverley | Beverley Kobelsky | Costume Designer | 2005 | 1 | |
| Kerner, Erika | Erika Kerner | Actor | 2005 - 2006 | 2 | |
| Kuhlmann, Saskia | Saskia Kuhlmann | Director | 2005 - 2006 | 2 | |
| Kerzmann, Anita | Anita Kerzmann | Adaptation, Dramaturg | 2005 | 2 | |
| Kort, Kathleen | Kathleen Kort | Lighting Designer | 2005 | 1 | |
| Kleist, Makka | Makka Kleist | Dramaturg | 2005 | 1 | |
| Kinasewich, Orest | Orest Kinasewich | Actor | 1962 - 2001 | 3 | |
| Kukkola, Katja | Katja Kukkola | Actor | 2001 | 2 | |
| Koller, Anne-Julia | Anne-Julia Koller | Actor | 2005 - 2006 | 6 | |
| Kaumanns , Mechthild | Mechthild Kaumanns | Costume Designer | 2005 - 2006 | 2 | |
| Kilner, Graham | Graham Kilner | Actor | 2005 | 1 | |
| Kučera, Antonín | Antonín Kučera | Translator | 1940 | 2 | |
| Karen, Bedřich | Bedřich Karen | Actor | 1940 | 2 | |
| Krejza, Jiří | Jiří Krejza | Actor | 1940 | 2 | |
| Krejzlík, V. | V. Krejzlík | Actor | 1939 | 1 | |
| Kliková, Božena | Božena Kliková | Actor | 1938 | 1 | |
| Kulhánek, Rudolf | Rudolf Kulhánek | Actor | 1933 | 3 | |
| Klimeš, Antonín | Antonín Klimeš | Actor | 1933 | 5 | |
| Klein, Otto | Otto Klein | Actor | 1933 | 1 | |
| Keczek, Karina | Karina Keczek | Actor | 2001 | 3 | |
| Kalafut, Michal | Michal Kalafut | Actor | 2011 | 1 | |
| Kulíšková, Táňa | Táňa Kulíšková | Actor | 1999 | 1 | |
| Karnasová, Andrea | Andrea Karnasová | Actor | 1999 | 1 | |
| Kollár, Viktor | Viktor Kollár | Director | 2011 | 2 | |
| Kukulies, Martin | Martin Kukulies | Costume Designer, Designer | 1998 - 2001 | 5 | |
| Kallerdahl, Fabian | Fabian Kallerdahl | Composer | 2005 | 1 | |
| Kuykendall, Jason | Jason Kuykendall | Actor | 2001 | 2 | |
| Knapik , Dominika | Dominika Knapik | Choreographer | 2012 | 1 | |
| Krajewski-Bola , Andrzej, B. | Andrzej B. Krajewski-Bola | Translator | 2005 - 2012 | 5 | |
| Klootwijk, Ruud | Ruud Klootwijk | Actor, Designer, Producer | 2005 | 3 | |
| Kuźmiński, Marcin | Marcin Kuźmiński | Actor | 2007 - 2012 | 2 | |
| Kowalska, Małgorzata | Małgorzata Kowalska | Actor | 2012 | 1 | |
| Kitsch, Lynn | Lynn Kitsch | Actor | 1989 | 1 | |
| Kruczek, Jakub | Jakub Kruczek | Actor | 2012 | 1 | |
| Konopiński, Maciej | Maciej Konopiński | Actor | 2011 | 1 | |
| Kojro, Dominika | Dominika Kojro | Actor | 2010 | 1 | |
| Kołodyńska, Dorota | Dorota Kołodyńska | Costume Designer, Designer | 2009 - 2012 | 8 | |
| Kierzkowska, Maria | Maria Kierzkowska | Actor | 2009 - 2016 | 5 | |
| Kutnik, Marek | Marek Kutnik | Lighting Designer | 2009 | 2 | |
| Kireńczuk, Tomasz | Tomasz Kireńczuk | Dramaturg | 2009 | 2 | |
| Krafftówna, Barbara | Barbara Krafftówna | Actor | 2007 | 2 | |
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