| Kentros, Giorgos | Giorgos Kentros | Actor | 1989 | 1 | |
| Karakonstantoglou, Periklis | Periklis Karakonstantoglou | Actor | 1989 | 1 | |
| Kjebon, I. | I. Kjebon | Actor | 1881 | 1 | |
| Kim | Kim - | Actor | 1889 | 1 | |
| Kreuzburg, Toni | Toni Kreuzburg | Actor | 1891 | 1 | |
| Kentaka, Lili | Lili Kentaka | Costume Designer, Designer | 1990 - 1994 | 4 | |
| Kourmpas, Panagiotis | Panagiotis Kourmpas | Lighting Designer | 1990 - 1994 | 2 | |
| Kalantzopoulos, Panos | Panos Kalantzopoulos | Composer | 1990 | 1 | |
| Kyriakidis, Stefanos | Stefanos Kyriakidis | Actor | 1990 | 1 | |
| Karagianni, Katerina | Katerina Karagianni | Actor | 1990 - 1991 | 2 | |
| Kalanovski, Vesselin | Vesselin Kalanovski | Actor | 1991 | 1 | |
| Korun, Janja | Janja Korun | Costume Designer, Designer | 1992 - 1994 | 4 | |
| Kavčič, Blaž | Blaž Kavčič | Actor | 1992 | 1 | |
| Khan, Khaled | Khaled Khan | Director | 1993 | 1 | |
| Khan, Jahirul, Huq | Jahirul Huq Khan | Actor | 1993 | 1 | |
| Kajal, Enayet | Enayet Kajal | Actor | 1993 | 1 | |
| Krkošková, Ľuba | Ľuba Krkošková | Actor | 1993 | 1 | |
| Kožuch, Ján | Ján Kožuch | Actor | 1993 | 1 | |
| Konstantinov, Konstantin | Konstantin Konstantinov | Actor | 1993 - 2013 | 2 | |
| Karadzhov, Ivan | Ivan Karadzhov | Director | 1993 | 1 | |
| Kamburova, Elena | Elena Kamburova | Designer | 1993 | 1 | |
| Karkoszka, Elżbieta | Elżbieta Karkoszka | Actor | 1983 | 1 | |
| Kiziukiewicz, Bogdan | Bogdan Kiziukiewicz | Actor | 1983 | 1 | |
| Kastmann, Trond | Trond Kastmann | Designer | 1983 | 1 | |
| Kozeva, Maria | Maria Kozeva | Actor | 1994 | 1 | |
| Keithley, Adam | Adam Keithley | Actor | 1994 | 1 | |
| Katz, Leon | Leon Katz | Adaptation, Dramaturg, Translator | 1983 | 3 | |
| Karavargyri, Ogla | Ogla Karavargyri | Costume Designer | 1995 | 16 | |
| Krouska, Stella | Stella Krouska | Actor | 1995 | 16 | |
| Karadimou, Maria | Maria Karadimou | Actor | 1995 | 16 | |
| Kunkel, Jonathan | Jonathan Kunkel | Actor | 1983 | 1 | |
| Krča, Drago | Drago Krča | Actor | 1967 - 1983 | 2 | |
| Krnjaić, Stevo | Stevo Krnjaić | Actor | 1967 - 1983 | 2 | |
| Kennedy, Laurie | Laurie Kennedy | Actor | 1983 - 2016 | 2 | |
| Klunis, Tom | Tom Klunis | Actor | 1983 | 1 | |
| Kälin, Renata | Renata Kälin | Actor | 1983 | 4 | |
| Krewer, Harald | Harald Krewer | Director | 1995 | 1 | |
| Kelley, Kathryn | Kathryn Kelley | Actor | 1995 | 1 | |
| Kustila, Heikki | Heikki Kustila | Director | 1995 | 1 | |
| KUBUS, - | - KUBUS | Designer | 1998 | 1 | |
| Keller, Astrid | Astrid Keller | Actor | 1978 - 1998 | 3 | |
| Kasztura, Daniel | Daniel Kasztura | Actor | 1998 | 1 | |
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