| Koon, Yeo Kook | Yeo Kook Koon | Lighting Designer | 2009 - 2012 | 3 | |
| Kraš, Eva | Eva Kraš | Actor | 2009 - 2013 | 3 | |
| Kuchenbuch, Roland | Roland Kuchenbuch | Actor | 2009 - 2012 | 3 | |
| Kataoka, Sachiko | Sachiko Kataoka | Actor | 2009 | 3 | |
| Kiesewalter, Anja Nadine | Anja Nadine Kiesewalter | Actor | 2009 - 2010 | 3 | |
| Kainulainen, Tuuli | Tuuli Kainulainen | Actor | 2009 | 3 | |
| Kaikkonen, Vesa | Vesa Kaikkonen | Actor | 2009 | 3 | |
| Knipp, Joe | Joe Knipp | Director | 2013 - 2018 | 3 | |
| Kalker, Fabian | Fabian Kalker | Musical Director, Musician | 2015 - 2022 | 3 | |
| Kahnwald, Nils | Nils Kahnwald | Actor | 2010 - 2013 | 3 | |
| Kling, Esther | Esther Kling | Costume Designer, Mask Maker | 1963 - 1964 | 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 - 2018 | 3 | |
| Kilian, Jens | Jens Kilian | Costume Designer, Designer | 2000 - 2013 | 3 | |
| Karjala, Jodi | Jodi Karjala | Costume Designer, Designer | 2011 - 2017 | 3 | |
| Karel, Mike | Mike Karel | Actor | 1964 | 3 | |
| Kurkova, Anastasia | Anastasia Kurkova | Actor | 2011 | 3 | |
| Korn, Alexander | Alexander Korn | Actor | 2011 | 3 | |
| Kühn, Rainer | Rainer Kühn | Actor | 1998 - 2015 | 3 | |
| Kilby, Bernard | Bernard Kilby | Actor | 1958 | 3 | |
| Kinney, Lee | Lee Kinney | Sound Designer | 2016 - 2021 | 3 | |
| Kraus, Willi | Willi Kraus | Actor | 1915 - 1917 | 3 | |
| Kapelios, Nikos | Nikos Kapelios | Actor | 2013 | 3 | |
| Kranz, Daniela | Daniela Kranz | Director | 2013 - 2014 | 3 | |
| Kinzinger, Irene | Irene Kinzinger | Actor | 1953 | 3 | |
| Kilpeläinen, Hillevi | Hillevi Kilpeläinen | Actor | 1998 | 3 | |
| Koch, Sophie | Sophie Koch | Actor | 1998 - 2000 | 3 | |
| Küngas, Aksel | Aksel Küngas | Actor | 1962 | 3 | |
| Kalmet, Hanno | Hanno Kalmet | Actor | 1962 | 3 | |
| Kuramoto, Yasufumi | Yasufumi Kuramoto | Actor | 1998 - 1999 | 3 | |
| Kentish, Agatha | Agatha Kentish | Actor | 1931 | 3 | |
| Kaila, Essi | Essi Kaila | Actor | 1998 | 3 | |
| Kramer, Karsten | Karsten Kramer | Actor | 1999 | 3 | |
| Koht, Fritzie | Fritzie Koht | Actor | 1936 - 1939 | 3 | |
| Klöhn, André | André Klöhn | Actor | 1999 | 3 | |
| Kampanis, Fanis | Fanis Kampanis | Actor | 1938 - 1939 | 3 | |
| Keen, Geoffrey | Geoffrey Keen | Actor | 1946 - 1952 | 3 | |
| Kildahl, Erling, E. | Erling E. Kildahl | Director | 1946 - 1948 | 3 | |
| Kilbride, Richard | Richard Kilbride | Actor | 1947 - 1949 | 3 | |
| Kijowski, Kazimierz | Kazimierz Kijowski | Actor | 1923 | 3 | |
| Kofoed, Annika | Annika Kofoed | Actor | 2000 | 3 | |
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