| Koutsokosta, Dimitra | Dimitra Koutsokosta (Δήμητρα Κουτσοκώστα) | Assistant Director | 2022 - 2023 | 4 | |
| Koutsoudaki, Afroditi | Afroditi Koutsoudaki | Costume Designer, Designer | 1986 - 2002 | 5 | |
| Koutsoudaki, Christina | Christina Koutsoudaki | Actor | 1972 | 1 | |
| Koutsoukos, Sakis | Sakis Koutsoukos | Musical Director | 1999 | 2 | |
| Koutsoukou, Mairi | Mairi Koutsoukou | Actor | 2002 | 3 | |
| Kouvardas, Spyros | Spyros Kouvardas | Actor | 1982 | 1 | |
| Kouwenberg, Jasper, Klein | Jasper Klein Kouwenberg | Actor | 1991 | 3 | |
| Kouwenhoven, Annet | Annet Kouwenhoven | Actor | 1988 - 2000 | 7 | |
| Kouwenhoven, Annette | Annette Kouwenhoven | Actor | 2014 | 12 | |
| Kouwenhoven, Wim | Wim Kouwenhoven | Actor | 1954 | 1 | |
| Kouzitskin, Alexandros | Alexandros Kouzitskin | | | | |
| Kovač, Igor | Igor Kovač | Actor | 2017 | 1 | |
| Kovačević, Antoneta | Antoneta Kovačević (Антонета Ковачевиќ) | Actor | 1970 | 1 | |
| Kovačević, Eržika | Eržika Kovačević | Actor | 1956 - 1972 | 2 | |
| Kovačević, Goran | Goran Kovačević | Musician | 2016 | 1 | |
| Kovačević, Ivana | Ivana Kovačević | Actor | 2000 | 1 | |
| Kovacevic, Ranko | Ranko Kovacevic | Actor | 1984 | 1 | |
| Kovačević, Snežana | Snežana Kovačević | Costume Designer | 2000 | 1 | |
| Kovačić Pavlina, Petra | Petra Kovačić Pavlina | Actor | 2013 - 2017 | 2 | |
| Kovačić, Mr | Mr Kovačić | Actor | 1898 | 1 | |
| Kovačić, Vasja | Vasja Kovačić | Actor | 1990 | 1 | |
| Kováčiková, Katarína | Katarína Kováčiková | Costume Designer | 2013 | 1 | |
| Kovács, András, Éry | András Éry Kovács | Adaptation, Designer, Director | 2006 | 3 | |
| Kovács, Andrea | Andrea Kovács | Costume Designer | 1999 - 2002 | 2 | 1 |
| Kovács, Angela | Angela Kovács | Actor | 1991 - 2013 | 28 | 1 |
| Kovács, Bálint | Bálint Kovács | Designer | | 1 | |
| Kovacs, Dalma | Dalma Kovacs | Musical Director | 2016 | 1 | |
| Kovács, Dénes | Dénes Kovács | Actor | 1976 | 1 | |
| Kovács, Dezső | Dezső Kovács | Director | 1965 | 1 | 1 |
| Kovács, Edit | Edit Kovács | Actor | 1999 - 2007 | 3 | 1 |
| Kovács, Eva | Eva Kovács | Actor | 1970 | 1 | |
| Kovács, Ferenc | Ferenc Kovács | Designer | 1974 | 2 | 1 |
| Kovács, Irénke | Irénke Kovács | Actor | 1941 | 1 | |
| Kovács, István | István Kovács | Actor | 1965 | 1 | |
| Kovács, János | János Kovács | Actor | 1989 | 1 | |
| Kovács, Károly | Károly Kovács | Actor | 1924 - 1964 | 7 | |
| Kovács, Katalin | Katalin Kovács | Dancer | 1969 | 1 | |
| Kovács, Katalin | Katalin Kovács | Director | 1965 | 1 | |
| Kovács, Kinga | Kinga Kovács | Assistant Director | 2017 - 2019 | 9 | |
| Kovács, Krisztina | Krisztina Kovács | Dramaturg | 2008 | 1 | |
| Kovacs, Lajos | Lajos Kovacs | Actor, Choreographer | 1965 - 1993 | 2 | |
| Kovács, Lehel | Lehel Kovács | Actor | 2013 | 1 | |
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