| Koponen, Kaisu | Kaisu Koponen | Designer | 2013 | 1 | |
| Kiiliäinen, Tuomas | Tuomas Kiiliäinen | Actor | 2013 | 1 | |
| Kotkaniemi, Saara | Saara Kotkaniemi | Actor | 2013 | 1 | |
| Kainulainen, Tommi | Tommi Kainulainen | Actor | 2012 | 1 | |
| Kokko, Emilia | Emilia Kokko | Actor | 2012 | 1 | |
| Karutz, Carl | Carl Karutz | Actor | 1878 | 1 | |
| Karutz, Fr. | Fr. Karutz | Actor | 1878 | 1 | |
| Kearney, Tracy | Tracy Kearney | Actor | 2000 | 1 | |
| Kelo, Marno | Marno Kelo | Actor | 1992 | 1 | |
| Krassowski, Feliks | Feliks Krassowski | Designer | 1922 - 1923 | 2 | |
| Kazimierowski, Eugeniusz | Eugeniusz Kazimierowski | Designer | 1923 | 1 | |
| Kurnakowicz, Jan | Jan Kurnakowicz | Actor | 1923 | 1 | |
| Kyyrönen, Johannes | Johannes Kyyrönen | Lighting Designer | 1983 | 1 | |
| Kurosawa, Makiko | Makiko Kurosawa | Actor | 2000 | 1 | |
| Kobboldt, Dietmar | Dietmar Kobboldt | Director | 2000 | 1 | |
| Keskenović, Biljana | Biljana Keskenović | Actor | 2000 | 1 | |
| Kovačević, Ivana | Ivana Kovačević | Actor | 2000 | 1 | |
| Köstem, Şebnem | Şebnem Köstem (Sebnem Kostem) | Actor | 2012 | 1 | |
| Koyuncuoğlu, Emre | Emre Koyuncuoğlu | Director, Translator | 2012 | 2 | |
| Kuş, Gamze | Gamze Kuş | Costume Designer, Designer | 2012 - 2018 | 3 | |
| Kalitowicz, Izabela | Izabela Kalitowicz | Actor | 1924 | 1 | |
| Kalinowski, Władysław | Władysław Kalinowski | Musician | 1923 | 1 | |
| Kaden, Czesław | Czesław Kaden | Actor | 1925 | 1 | |
| Kovjanić, Dubravka | Dubravka Kovjanić | Actor | 2000 | 3 | |
| Kutlešić, Jovan | Jovan Kutlešić | Actor | 2000 | 1 | |
| Kovačević, Snežana | Snežana Kovačević | Costume Designer | 2000 | 1 | |
| Kuruç, Bozkurt | Bozkurt Kuruç | Actor, Director | 1960 - 1981 | 4 | |
| Kılıç, Nesrin | Nesrin Kılıç (Nesrin Kilic) | Actor | 1977 | 1 | |
| Koç, Tomris Oğuzalp | Tomris Oğuzalp Koç | Actor | 1977 | 1 | |
| Kavuzlu, Olcay | Olcay Kavuzlu | Actor | 2014 | 1 | |
| Kjennerud, Øystein | Øystein Kjennerud | Producer | 2017 | 17 | |
| Kauppi, Emil | Emil Kauppi | Composer | 1925 | 1 | |
| Kondrat, Józef | Józef Kondrat | Actor | 1928 | 1 | |
| Kragstad, Petter | Petter Kragstad | Conductor | 2013 - 2014 | 2 | |
| Kuhn, Frl. | Frl. Kuhn | Actor | 1878 | 1 | |
| Kroneck, Ludwig | Ludwig Kroneck | Actor | 1905 | 1 | |
| Keller, Frl. | Frl. Keller | Actor | 1878 | 1 | |
| Kincses, Elemer | Elemer Kincses | Adaptation, Director, Musical Director | 2013 - 2015 | 6 | |
| Koltschakova, Magda | Magda Koltschakova | Actor | 1971 | 1 | |
| Kostadinov, Kalin | Kalin Kostadinov | Actor | 2015 - 2016 | 2 | |
| Kovács, Szabina | Szabina Kovács | Assistant Director | 2011 | 1 | |
| Krijn, Sari | Sari Krijn | Actor | 1971 | 1 | |
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