| 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 | |
| Kesterčanek, Mr | Mr Kesterčanek | Actor | 1891 - 1897 | 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 | |
| Karmelić, Đuro | Đuro Karmelić | Actor | 1932 - 1941 | 2 | |
| Kostovski, Branko | Branko Kostovski | Designer | 1957 - 1976 | 2 | |
| Klarin Klár, Petr | Petr Klarin Klár | Dramaturg | 2017 | 2 | |
| Krušelnický, Petr | Petr Krušelnický | Choreographer | 2017 | 2 | |
| Kalanova, Mira | Mira Kalanova | Costume Designer, Designer | 2010 | 2 | |
| Kos, Boštjan | Boštjan Kos | Lighting Designer | 2014 - 2015 | 2 | |
| Kerch, Boris | Boris Kerč | Actor | 2014 - 2015 | 2 | |
| Karagiannopoulou, Athanasia | Athanasia Karagiannopoulou | Adaptation, Director | 2019 | 2 | |
| Kutakov, V. | V. Kutakov | Actor | 1970 - 1990 | 2 | |
| Kassis, José Luis | José Luis Kassis | Actor | 2004 | 2 | |
| Klainer, Sergio | Sergio Klainer | Actor | 1980 - 1994 | 2 | |
| Kay, Jonathan | Jonathan Kay | Actor | 2020 | 2 | |
| Kirkene, Evangelia | Evangelia Kirkene | Costume Designer, Designer | 2020 | 2 | |
| Karetnikov, Nikolaj | Nikolaj Karetnikov | Composer | 1979 - 1981 | 2 | |
| Krasnov, Leonid | Leonid Krasnov | Actor, Director | 2009 | 2 | |
| Kilyén, László | László Kilyén | Actor | 2019 | 2 | |
| Keramatloo, Fatemeh | Fatemeh Keramatloo | Actor | 2018 - 2020 | 2 | |
| Karimi | Saeid | Dramaturg, Lighting Designer | 2018 | 2 | |
| Kinz, Franziska | Franziska Kinz | Actor | 1937 - 1944 | 2 | |
| Kirigin, Zdravka Ivandija | Zdravka Ivandija Kirigin | Costume Designer, Designer | 2014 - 2021 | 2 | |
| Kérien, Jean-Pierre | Jean-Pierre Kérien | Actor | 1935 | 2 | |
| Kaced, Anne-Marie | Anne-Marie Kaced | Actor | 2014 | 2 | |
| Kaced, Jean-Luc | Jean-Luc Kaced | Actor | 2014 | 2 | |
| Kokamägi, Epp-Maria | Epp-Maria Kokamägi | Costume Designer, Designer | 1989 | 2 | |
| Kestelman, Sara | Sara Kestelman | Actor | 1972 | 2 | |
| Kelleher, Devon | Devon Kelleher | Actor, Director | 2022 | 2 | |
| Krsmanović, Asja | Asja Krsmanović | Adaptation, Dramaturg | 2022 | 2 | |
| Kelch, Hunter | Hunter Kelch | Actor | | 2 | |
| Knox, Campbell | Campbell Knox | Actor, Assistant Director | 2020 - 2022 | 2 | |
| King, Hannah | Hannah King | Actor | 2020 - 2022 | 2 | |
| Karimi, Niki | Niki Karimi | Actor | 1993 | 1 | |
| Kuroda, Yuko | Yuko Kuroda | Costume Designer | 1994 | 1 | |
| Kajdassy, Ferike | Ferike Kajdassy | Actor | 1941 | 1 | |
| Kovács, Irénke | Irénke Kovács | Actor | 1941 | 1 | |
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