| Kodama, Taiji | Taiji Kodama | Actor | 1978 - 2003 | 6 | |
| Kwiecińska, Paulina | Paulina Kwiecińska | Actor | 1899 | 1 | |
| Komlósi, I. | I. Komlósi | Actor | 1889 | 1 | |
| Kramer, Tim | Tim Kramer | Director | 2002 - 2018 | 2 | |
| Kindmark, Klara | Klara Kindmark | Actor | 2007 | 1 | |
| Karganoff, - | - Karganoff | Composer | 1922 | 1 | |
| Koch, Birgitte Halling | Birgitte Halling Koch | Actor, Director | 1985 - 1992 | 2 | |
| Kittelsen, Agnes Hilden | Agnes Hilden Kittelsen | Actor | 2007 - 2015 | 3 | |
| Kryzwinski, Bjørn | Bjørn Kryzwinski | Costume Designer, Designer | 1987 | 2 | |
| Krohn, Frida | Frida Krohn | Actor | 1901 | 1 | |
| Kankainen, Timo | Timo Kankainen | Actor | 1980 | 1 | |
| Kukkola, Tapani | Tapani Kukkola | Actor | 2002 | 1 | |
| Kotte, Nina | Nina Kotte | Sound Designer | 1994 | 1 | |
| Kurmin, Dagmar | Dagmar von Kurmin (Dagmar Kurmin) | Actor | 1966 - 2003 | 3 | |
| Kranich, Friedrich | Friedrich Kranich | Designer | 1919 - 1933 | 2 | |
| Krasnjanskij, E. | E. Krasnjanskij | Director | 1938 | 1 | |
| Kravčenko, V. | V. Kravčenko | Actor | 1999 - 2000 | 2 | |
| Kabanova, L. | L. Kabanova | Actor | 1999 - 2000 | 2 | |
| Kozák, J. | J. Kozák | Actor | 1944 | 1 | |
| Koene, Antoine | Antoine Koene | Actor | 1984 | 1 | |
| Kerr, Ali | Ali Kerr | Actor | 2008 | 1 | |
| Kelly, Fernanda | Fernanda Kelly | Actor | 2007 | 1 | |
| Klētnieks, Nauris | Nauris Klētnieks | Director | 1974 | 1 | |
| Kļaviņs, Aldis | Aldis Kļaviņs | Designer | 1974 | 1 | |
| Kalnarāja, Ināra | Ināra Kalnarāja | Actor | 1974 | 1 | |
| Kuplais, Jānis | Jānis Kuplais | Actor | 1974 | 1 | |
| Kasparová, M. | M. Kasparová | Actor | 1936 | 1 | |
| Kretzer, Fred | Fred Kretzer | Actor | 1970 - 1990 | 6 | |
| Kakiuchi, Norio | Norio Kakiuchi | Designer | 1978 - 1980 | 4 | |
| Kawakami, Natsuyo | Natsuyo Kawakami | Actor | 1978 | 2 | |
| Kruse, Nikoline F. | Nikoline F. Kruse | Costume Designer, Designer | 2002 - 2003 | 4 | |
| Kuhn, Natalie | Natalie Kuhn | Dramaturg | 2002 - 2003 | 2 | |
| Krosigk, Friederike v. | Friederike v. Krosigk | Actor | 2002 - 2003 | 2 | |
| Kühnreich, Christina A. | Christina A. Kühnreich | Actor | 2001 - 2013 | 3 | |
| Kressmann, Thomas | Thomas Kressmann | Actor | 1992 | 1 | |
| Karafotias, Ted | Ted Karafotias | Actor | 1936 | 1 | |
| Keip, Thomas | Thomas Keip | Costume Designer, Designer | 1999 | 2 | |
| Krajec, David R. | David R. Krajec | Designer, Lighting Designer | 1993 - 1997 | 4 | |
| Kimmig, Stephan | Stephan Kimmig | Director | 2002 - 2021 | 16 | |
| Kubota, Tatsuo | Tatsuo Kubota | Actor | 1934 | 1 | |
| Kosaki, Yoshika | Yoshika Kosaki | Actor | 1934 | 1 | |
| Kovács, Nóra | Nóra Kovács | Actor, Director | 2005 - 2016 | 2 | |
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