| Kuhn, Bettina | Bettina Kuhn | Actor | 1981 | 6 | |
| Keller, Max | Max Keller | Lighting Designer | 1979 - 1991 | 5 | |
| Karydis-Foux, Aristeidis | Aristeidis Karydis-Foux | Lighting Designer | 1979 | 1 | |
| Kavanová, Eva Marie | Eva Marie Kavanová | Adaptation | 1972 - 1994 | 6 | |
| Kozłowski, Jerzy | Jerzy Kozłowski | Actor | 1976 | 1 | |
| Kováts, Krisztina | Krisztina Kováts | Actor | 1979 | 1 | |
| Kogan, Dany | Dany Kogan | Actor | 1976 | 1 | |
| Kőmives, Sándor | Sándor Kőmives | Actor | 1979 | 1 | |
| Koppány, Gizella | Gizella Koppány | Costume Designer | 1979 | 1 | |
| Kostadinova, Hristina | Hristina Kostadinova | Actor | 1979 | 1 | |
| Kozhuharov, Borislav | Borislav Kozhuharov | Designer | 1979 | 1 | |
| Kitzesch, Jenny | Jenny Kitzesch | Actor | 1968 - 1991 | 3 | |
| Kluga, Raymond M. | Raymond M. Kluga | Costume Designer | 1981 | 1 | |
| Kersten, Angelika | Angelika Kersten | Actor | 1981 | 1 | |
| Kalberg, Arnstein | Arnstein Kalberg | Actor | 1979 | 1 | |
| Kivi, Jouko | Jouko Kivi | Actor, Director | 1979 | 2 | |
| Korepta, Zbigniew | Zbigniew Korepta | Actor | 1979 | 1 | |
| Kumor, Krzysztof | Krzysztof Kumor | Actor | 1979 | 1 | |
| Kawęcka, Dorota | Dorota Kawęcka | Actor | 1979 | 1 | |
| Kiebicz, Fabian | Fabian Kiebicz | Actor | 1979 | 1 | |
| Kent, Brian | Brian Kent | Actor | 1978 - 1979 | 2 | |
| Killing, Cornelia | Cornelia Killing | Actor | 1979 | 1 | |
| Kerb, Martin | Martin Kerb | Actor | 1909 - 1910 | 2 | |
| Koch, Sidsel, Siem | Sidsel Siem Koch | Actor | 2013 | 2 | |
| Kühnau, Erik | Erik Kühnau | Actor | 1957 - 1964 | 2 | |
| Kern, Pouel | Pouel Kern | Actor | 1933 - 1986 | 10 | |
| Kisum, William | William Kisum | Actor | 1957 | 1 | |
| Kelling, Gerhard | Gerhard Kelling | Dramaturg, Translator | 1976 - 1985 | 4 | |
| Klaus, Rosa | Rosa Klaus | Actor | 1902 | 1 | |
| Kupfer, Fritz | Fritz Kupfer | Actor | 1972 | 1 | |
| Kalbeck, Florian | Florian Kalbeck | Adaptation, Translator | 1956 - 1972 | 5 | |
| Kozna, Egon, H. | Egon H. Kozna | Actor | 1972 | 2 | |
| Karindi, Jüri | Jüri Karindi | Actor | 1976 | 1 | |
| Kurt, Rudolf | Rudolf Kurt | Actor | 1908 | 2 | |
| Krauß, Wilhelm | Wilhelm Krauß | Actor | 1908 | 2 | |
| Krisch, Geza | Geza Krisch | Actor | 1908 | 2 | |
| Konrad, Anna | Anna Konrad | Actor | 1907 | 1 | |
| Kurze, Günter | Günter Kurze | Actor | 1972 - 1995 | 9 | |
| Kirst, Klaus-Dieter | Klaus-Dieter Kirst | Director | 1972 - 2010 | 2 | |
| Kröplin, Wolfgang | Wolfgang Kröplin | Dramaturg | 1972 | 1 | |
| Kelly, Rosemary | Rosemary Kelly | Actor, Costume Designer | 1972 | 2 | |
| Kear, Dennis | Dennis Kear | Actor, Mask Maker | 1972 | 2 | |
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