| Kokejl, Franta | Franta Kokejl | Actor | 1973 | 1 | |
| Kreutzberger, Gudrun | Gudrun Kreutzberger | Choreographer | 1979 | 1 | |
| Kolbe, Amand | Amand Kolbe | Actor | 1889 | 1 | |
| Kupfer, Günter | Günter Kupfer | Costume Designer, Designer | 1979 - 1986 | 8 | |
| Karpman, Susan Helen | Susan Helen Karpman | Actor | 1979 | 1 | |
| Korhel, Erna | Erna Korhel | Actor | 1970 - 1975 | 2 | |
| Kruzik, Peter | Peter Kruzik | Actor | 1975 | 1 | |
| Kralj, Matthias | Matthias Kralj | Designer | 1966 - 1985 | 4 | |
| Kuželová, Lída | Lída Kuželová | Actor | 1973 | 1 | |
| Klička, Ivan | Ivan Klička | Actor | 1973 | 1 | |
| 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 | |
| Krzywinski, Bjørn | Bjørn Krzywinski | Designer | 1981 | 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 | |
| Koltai, Ralph | Ralph Koltai | Costume Designer, Designer | 1977 - 1979 | 5 | |
| 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 | |
| King, Lawrence | Lawrence King | Designer | 1981 | 1 | |
| Kelling, Gerhard | Gerhard Kelling | Dramaturg, Translator | 1976 - 1985 | 4 | |
| Kneidl, Karl | Karl Kneidl | Costume Designer, Designer, Lighting Designer | 1966 - 2008 | 35 | |
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