| Kenyon, Sandy | Sandy Kenyon | Actor | 1949 | 2 | |
| Koller, Seline | Seline Koller | Actor | 1907 - 1908 | 2 | |
| Krassowski, Feliks | Feliks Krassowski | Designer | 1922 - 1923 | 2 | |
| Koyuncuoğlu, Emre | Emre Koyuncuoğlu | Director, Translator | 2012 | 2 | |
| Kragstad, Petter | Petter Kragstad | Conductor | 2013 - 2014 | 2 | |
| Kostadinov, Kalin | Kalin Kostadinov | Actor | 2015 - 2016 | 2 | |
| Kratz, Monika | Monika Kratz | Costume Designer | 1971 - 1976 | 2 | |
| Karagiorgis, Klearchos | Klearchos Karagiorgis | Director | 1971 - 1973 | 2 | |
| Kanic, Marko, Iversen | Marko Iversen Kanic | Actor | 2017 - 2018 | 2 | |
| Kuehner, Jody | Jody Kuehner | Actor, Adaptation | 2017 | 2 | |
| Karlsen, Per | Per Karlsen | Mask Maker | 1976 - 1979 | 2 | |
| Kettunen, Arne | Arne Kettunen | Actor | 1976 - 1978 | 2 | |
| Kettner, Gisela | Gisela Kettner | Actor | 1976 | 2 | |
| Kayan, Sabih | Sabih Kayan (Sabih Kayan) | Costume Designer, Designer | 1956 | 2 | |
| Kilsti, Inger-Helen | Inger-Helen Kilsti | Actor, Producer | 2017 | 2 | |
| Kalinine, Marie | Marie Kalinine | Actor | 2017 | 2 | |
| Kim, Randall, Duk | Randall Duk Kim | Actor | 1978 - 2019 | 2 | |
| Kato, Go | Go Kato | Actor | 1978 | 2 | |
| Kullberg, Frk. | Frk. Kullberg | Actor | 1878 - 1879 | 2 | |
| Kianfar, Sediqeh | Sediqeh Kianfar | Actor | 1998 - 2017 | 2 | |
| Köhlhofer, C. | C. Köhlhofer | Actor | 1980 | 2 | |
| Kurt, Şaziye Berin | Şaziye Berin Kurt | Translator | 1960 - 1987 | 2 | |
| Königshoven, Stefan | Stefan Königshoven | Actor | 1981 | 2 | |
| Katranidou, Marilena | Marilena Katranidou | Assistant Director | 2016 - 2017 | 2 | |
| Kyriakou, Eirini | Eirini Kyriakou | Actor | 2016 - 2017 | 2 | |
| Kasaska, Miglena | Miglena Kasaska | Costume Designer, Designer | 1983 | 2 | |
| Kreutzer, Frederik | Frederik Kreutzer | Actor | 1878 | 2 | |
| Kılıç, Sadrettin | Sadrettin Kılıç (Sadrettin Kilic) | Actor | 1975 - 1982 | 2 | |
| Konrad, Joachim | Joachim Konrad | Actor | 1993 - 1994 | 2 | |
| König, Jürgen | Jürgen König | Actor | 1993 - 1994 | 2 | |
| Koliha, Petr | Petr Koliha | Producer | 1994 - 2004 | 2 | |
| Koç, Ezgi | Ezgi Koç (Ezgi Koc) | Actor, Assistant Director | 2007 | 2 | |
| Koukoumas, Georgios | Georgios Koukoumas | Lighting Designer | 2017 | 2 | |
| Kim, Daijin | Daijin Kim | Actor | 2017 | 2 | |
| Kim, Beomjin | Beomjin Kim | Actor | 2017 | 2 | |
| Kronau, Siegfried | Siegfried Kronau | Actor | 1914 | 2 | |
| Klaus, Claudia | Claudia Klaus | Director | 2018 | 2 | |
| Karl, Sebastian | Sebastian Karl | Actor | 2018 | 2 | |
| Kelly, Diana | Diana Kelly | Costume Designer | 1945 - 1946 | 2 | |
| Krauser, Erwin | Erwin Krauser | Actor | 1940 - 1941 | 2 | |
| Kompen, Kristoffer | Kristoffer Kompen | Musician | 2017 - 2018 | 2 | |
| Khorami, Sara | Sara Khorami | Actor | 2018 - 2019 | 2 | |
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