| Khademi, Nader | Nader Khademi | Actor | 2014 - 2016 | 5 | |
| König, Nina | Nina König | Mask Maker | 2014 - 2015 | 2 | |
| Kehrwand, Otto | Otto Kehrwand | Actor | 1985 | 4 | |
| Kokkin, Anne Elisabeth | Anne Elisabeth Kokkin | Actor | 1986 | 1 | |
| Karlsen, Anne Kirsti, Krogvik | Anne Kirsti Krogvik Karlsen | Actor | 1986 | 1 | |
| Klvana, Kathryn | Kathryn Klvana | Actor | 1985 | 1 | |
| Kaufmann, Dieter | Dieter Kaufmann | Composer | 1985 | 1 | |
| Kawabuchi, Yuko | Yuko Kawabuchi | Actor | 2006 - 2018 | 12 | |
| Kibo, Chihiro | Chihiro Kibo | Actor | 2006 | 1 | |
| Kito, Ayumi | Ayumi Kito | Lighting Designer | 2006 | 1 | |
| Kouroudi, Lena | Lena Kouroudi | Actor | 1985 | 1 | |
| Kalogeropoulos, Nikos | Nikos Kalogeropoulos | Actor | 1984 - 1985 | 2 | |
| Krejčová, Zuzana | Zuzana Krejčová | Actor | 1985 | 1 | |
| Khain, Jindřich | Jindřich Khain | Actor | 1985 | 1 | |
| Kiernan, Paul | Paul Kiernan | Actor | 1986 | 1 | |
| Koci, Josef | Josef Koci | Actor | 1982 - 1987 | 2 | |
| Konrádová, L'ubica | L'ubica Konrádová | Actor | 1987 | 1 | |
| Kališ, Miloň | Miloň Kališ | Designer | 1986 | 1 | |
| Konrád, Ondřej | Ondřej Konrád | Composer | 1986 | 1 | |
| Karier, Steve | Steve Karier | Actor | 1987 | 1 | |
| Kasimir, Helmut | Helmut Kasimir | Actor | 1986 - 1987 | 11 | |
| Katsaris, Antonis | Antonis Katsaris | Actor | 1986 | 1 | |
| Kourkoumelis, Giannis | Giannis Kourkoumelis | Actor | 1986 | 1 | |
| Krines, Rosemarie | Rosemarie Krines | Designer | 1987 | 1 | |
| Krebs, Kitter | Kitter Krebs | Adaptation | 1986 | 1 | |
| Križaj, Franci | Franci Križaj | Director | 1970 - 1986 | 2 | |
| Kravos, Marjan | Marjan Kravos | Designer | 1986 | 1 | |
| Keys, Dale | Dale Keys | Actor | 2014 | 1 | |
| Kalousová, Nataša | Nataša Kalousová | Actor | 1986 | 1 | |
| Krátký, Vladimír | Vladimír Krátký | Actor | 1986 - 2006 | 5 | |
| Krátký, Rudolf | Rudolf Krátký | Actor | 1943 - 1986 | 4 | |
| Koch, Franziska | Franziska Koch | Actor | 1906 - 1907 | 3 | |
| Kessler, Herrmann | Herrmann Kessler | Actor, Adaptation, Designer, Director | 1986 | 4 | |
| Kilchherr, Adi | Adi Kilchherr | Actor | 1986 | 1 | |
| Kessler, Pauline | Pauline Kessler | Designer | 1986 | 1 | |
| Kox, Ronald | Ronald Kox | Lighting Designer | 1987 | 1 | |
| Kolo, S. | S. Kolo | Actor | 1984 | 1 | |
| Kjenes, Ann Kristin | Ann Kristin Kjenes | Actor | 1986 | 1 | |
| Krabbe, Till | Till Krabbe | Actor | 1987 | 1 | |
| Kusenberg, Klaus | Klaus Kusenberg | Director | 1987 - 2011 | 5 | |
| Kipp, Heide | Heide Kipp | Actor | 1984 | 1 | |
| Kamp, Marion, van de | Marion van de Kamp | Actor | 1984 | 1 | |
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