| Kubala, Jaroslav | Jaroslav Kubala | Actor | 1941 | 1 | |
| Kietponglert, Autumn | Autumn Kietponglert | Costume Designer | 2015 | 1 | |
| Kácová, Marie | Marie Kácová | Dancer | 1941 | 1 | |
| Kladivová, Irena | Irena Kladivová | Dancer | 1941 | 2 | |
| Kamberský, Jan | Jan Kamberský | Actor | 1941 | 1 | |
| Kelly, Jane | Jane Kelly | Composer | 2015 - 2017 | 38 | |
| Kostka, Ant. | Ant. Kostka | Actor | 1941 | 1 | |
| Kleinová, J. | J. Kleinová | Actor | 1941 | 1 | |
| Kostková, A. | A. Kostková | Actor | 1941 | 1 | |
| Kazil, Jan | Jan Kazil | Musician | 1940 | 1 | |
| Kristić, Doris | Doris Kristić | Costume Designer | 2005 - 2006 | 2 | |
| 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 | |
| Kort, Kathleen | Kathleen Kort | Lighting Designer | 2005 | 1 | |
| Kleist, Makka | Makka Kleist | Dramaturg | 2005 | 1 | |
| Kinasewich, Orest | Orest Kinasewich | Actor | 1962 - 2001 | 3 | |
| 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 | |
| Kollár, Viktor | Viktor Kollár | Director | 2011 | 2 | |
| Kukulies, Martin | Martin Kukulies | Costume Designer, Designer | 1998 - 2001 | 5 | |
| Kallerdahl, Fabian | Fabian Kallerdahl | Composer | 2005 | 1 | |
| Knapik, Dominika | Dominika Knapik | Choreographer | 2012 | 1 | |
| 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 - 2022 | 2 | |
| Kojro, Dominika | Dominika Kojro | Actor | 2010 | 1 | |
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