| Kosewsky, Inez | Inez Kosewsky | Actor | 1992 | 1 | |
| Koševerova, M. | M. Koševerova | Actor | 1900 - 1924 | 5 | |
| Koševerov, Aleksandar | Aleksandar Koševerov | Actor, Director | 1900 - 1924 | 18 | |
| Kosel, Walter | Walter Kosel | Actor | 1909 - 1919 | 8 | |
| Kosel, David | David Kosel | Actor | 2009 - 2010 | 5 | 2 |
| Kościuk, Michał | Michał Kościuk | Actor | 2006 - 2007 | 3 | |
| Kościałkowska, Maria | Maria Kościałkowska | Actor | 1960 | 1 | |
| Kościakiewicz, August (?) | August (?) Kościakiewicz | Actor | 1898 | 1 | |
| Koschwitz, Andrea | Andrea Koschwitz | Adaptation, Dramaturg | 1994 - 2010 | 12 | |
| Koschmann, Denise | Denise Koschmann | Dramaturg | 1996 | 1 | |
| Koschka, Julia | Julia Koschka | Actor | 1951 | 1 | |
| Koschitz, Julia | Julia Koschitz | Actor | 2006 | 3 | 1 |
| Koschel, Uwe | Uwe Koschel | Actor | 1956 | 1 | |
| Koschel, Uta | Uta Koschel | Actor | 1991 - 1993 | 2 | |
| Kosch, Emma | Emma Kosch | Actor | 1918 - 1919 | 3 | |
| Košata, Zdeněk | Zdeněk Košata | Actor | 1993 | 1 | |
| Kosari, Jahangir | Jahangir Kosari | Producer | 2014 | 1 | |
| Kosari, Fariba | Fariba Kosari | Actor | 2006 | 1 | |
| Kosaki, Yoshika | Yoshika Kosaki | Actor | 1934 | 1 | |
| Košak, Vinko | Vinko Košak | Translator | 1928 - 1929 | 2 | |
| Kósa, Béla | Béla Kósa | Actor | 2005 | 2 | |
| Kos, Slavica | Slavica Kos | Actor | 1933 | 1 | |
| Kos, Boštjan | Boštjan Kos | Lighting Designer | 2014 - 2015 | 2 | |
| Kos, Albert | Albert Kos | Director | 1982 | 1 | |
| Korzeniewska, Józefa | Józefa Korzeniewska | Actor | 1908 | 1 | |
| Korzan, Andrej | Andrej Korzan | Actor | 2017 | 1 | |
| Korycka, Danuta | Danuta Korycka | Actor | 1972 | 1 | |
| Korwinowa, Paulina | Paulina Korwinowa | Actor | 1887 | 1 | |
| Korwinóvna, - | - Korwinóvna | Actor | 1903 | 1 | |
| Korwin, Lidia | Lidia Korwin | Actor | 1975 | 1 | |
| Korv, Ants | Ants Korv | Actor | 1962 | 2 | |
| Korun, Mile | Mile Korun | Director | 1993 | 1 | |
| Korun, Janja | Janja Korun | Costume Designer, Designer | 1992 - 1994 | 4 | |
| Koruga, Igor | Igor Koruga | Choreographer | 2021 | 1 | |
| Korty, Sonia | Sonia Korty | Choreographer | 1942 | 1 | |
| Körtvélyessy, Zsolt | Zsolt Körtvélyessy | Actor | 1967 - 1991 | 2 | |
| Körtvélyessy, Thomas | Thomas Körtvélyessy | Actor | 1999 | 1 | |
| Kortner, Fritz | Fritz Kortner | Actor, Adaptation, Director | 1923 - 1964 | 9 | 2 |
| Korth, Walter | Walter Korth | Actor | 1909 - 1931 | 6 | |
| Korth, Michael | Michael Korth | Musical Director | 2015 | 1 | |
| Korteweg, Carine | Carine Korteweg | Actor | 1996 - 1997 | 11 | |
| Korterink, Thea | Thea Korterink | Actor | 1978 - 1982 | 2 | |
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