| Kyriakou, Eirini | Eirini Kyriakou | Actor | 2016 - 2017 | 2 | |
| Kasaska, Miglena | Miglena Kasaska | Costume Designer, Designer | 1983 | 2 | |
| Katevas, Ilias | Ilias Katevas | Actor | 1972 - 1984 | 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 | 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 | |
| Kirilov, N.Gh. | N.Gh. Kirilov | Actor | 1920 - 1922 | 2 | |
| Kritzegg, Gertrud | Gertrud Kritzegg | Actor | 1940 | 2 | |
| Katsushiba, Jiro | Jiro Katsushiba | Lighting Designer | 2018 | 2 | |
| Kamimura, Shuhei | Shuhei Kamimura | Composer | 2018 | 2 | |
| Kinosita, Chie | Chie Kinosita | Actor | 2018 | 2 | |
| Kondor, Ibolya | Ibolya Kondor | Actor | 1930 | 2 | |
| Kralj, Isabelle | Isabelle Kralj | Adaptation, Director | 2019 | 2 | |
| Kroboth, Mike | Mike Kroboth | Actor | 2019 | 2 | |
| Kingston, Mr. | Mr. Kingston | Actor | 1900 | 2 | |
| Kovačić Pavlina, Petra | Petra Kovačić Pavlina | Actor | 2013 - 2017 | 2 | |
| Karanović, Mirjana | Mirjana Karanović | Actor | 2015 | 2 | |
| Kodžić, Mirjana | Mirjana Kodžić | Actor | 1968 | 2 | |
| Kalvenes, Tor Endre | Tor Endre Kalvenes | Sound Designer | 2019 - 2022 | 2 | |
| Krančević, Dragomir | Dragomir Krančević | Actor | 1903 - 1934 | 2 | |
| Kopunović, Geza | Geza Kopunović | Actor | 1956 - 1972 | 2 | |
| Kovačević, Eržika | Eržika Kovačević | Actor | 1956 - 1972 | 2 | |
| Klokić, Abdulah | Abdulah Klokić | Actor | 1948 - 1956 | 2 | |
| Katica, Nagy | Nagy Katica | Actor | 2017 | 2 | |
| Kaynar Kissinger, Gad | Gad Kaynar Kissinger | Translator | 2020 - 2022 | 2 | 1 |
| Karmelić, Đuro | Đuro Karmelić | Actor | 1932 - 1941 | 2 | |
| Kamberović, Minka | Minka Kamberović | Choreographer | 1983 | 2 | |
| Klarin Klár, Petr | Petr Klarin Klár | Dramaturg | 2017 | 2 | |
| Krušelnický, Petr | Petr Krušelnický | Choreographer | 2017 | 2 | |
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