| Kostorž, Jurij | Jurij Kostorž | Actor | 1986 - 1990 | 2 | |
| Kostousov, V. | V. Kostousov | Actor | 1987 | 1 | |
| Kostov, Dimitar | Dimitar Kostov | Actor | 1976 | 1 | |
| Kostov, Dušan | Dušan Kostov (Душан Костов) | Actor | 1983 | 1 | |
| Kostov, Risto | Risto Kostov (Ристо Костов) | Actor | 1983 | 1 | |
| Kostov, Vasil | Vasil Kostov (Васил Костов) | Designer | 1968 | 1 | |
| Kostova, Anna | Anna Kostova | Actor | 1983 | 1 | |
| Kostova, Rossiza | Rossiza Kostova | Actor | 1974 - 1978 | 4 | |
| Kostovska, Vladanka | Vladanka Kostovska (Владанка Костовска) | Actor | 2012 | 1 | |
| Kostovski, Branko | Branko Kostovski | Designer, Set Designer | 1957 - 1976 | 3 | |
| Kostovski, Dragi | Dragi Kostovski | Actor | 1976 | 1 | |
| Kostovski, Vasko | Vasko Kostovski (Васко Костовски) | Actor | 2012 | 1 | |
| Kostřiba, Josef | Josef Kostřiba | Musical Director | 1988 | 1 | |
| Koštro, Silvana | Silvana Koštro | Actor | 1990 | 1 | |
| Kostrova, Elena | Elena Kostrova | Actor | 2003 - 2005 | 4 | |
| Kostrzyński, Mateusz | Mateusz Kostrzyński | Actor | 2007 | 3 | |
| Kostula, H. | H. Kostula | Translator | 1910 | 1 | |
| Kostyleva, G. | G. Kostyleva | Actor | 1983 | 1 | |
| Kostyuk, Andrey | Andrey Kostyuk | Actor | 2016 | 1 | |
| Kosugi, Yoshio | Yoshio Kosugi | Actor | 1925 - 1928 | 2 | |
| Kosugi, Yuji | Yuji Kosugi | Actor | 1986 | 1 | |
| Košuta, - | - Košuta | Actor | 1922 | 1 | |
| Kosydar, Isaac | Isaac Kosydar | Actor | 2008 | 1 | |
| Kőszegi, Gyula | Gyula Kőszegi | Actor | 1962 | 1 | |
| Kőszegi, Irén | Irén Kőszegi | Actor | 1925 | 1 | |
| Köszegi, Margit | Margit Köszegi | Actor | 1925 | 1 | |
| Koszutska, Olga | Olga Koszutska | Adaptation, Director | 1954 - 1978 | 8 | |
| Kotala, Anne | Anne Kotala | Costume Designer | 2004 | 1 | |
| Kotalawala, Sarath | Sarath Kotalawala | Actor | 2006 | 2 | |
| Kotamanidou, Eva | Eva Kotamanidou | Actor | 1978 - 1989 | 4 | |
| Kotanen, Ed | Ed Kotanen | Designer | 1972 | 1 | |
| Kotapis, J. | J. Kotapis | Actor | 1955 | 1 | |
| Kotarbiński, Józef | Józef Kotarbiński | Actor, Director | 1882 - 1908 | 9 | |
| Kote, Seeta | Seeta Kote | Actor | 2010 | 1 | |
| Kotelenets, Alexander | Alexander Kotelenets | Actor | 2012 | 6 | |
| Kotelenets, Heather | Heather Kotelenets | Actor | 2012 | 2 | |
| Kotepanos, Thodoros | Thodoros Kotepanos | Composer | 2002 | 1 | |
| Kotev, Emil | Emil Kotev | Actor | 1996 | 1 | |
| Koteva, Marina | Marina Koteva | Actor | 1981 | 1 | |
| Köth-Schäfer, Mrs. | Mrs. Köth-Schäfer | Actor | 1896 - 1898 | 3 | |
| Köth-Schäfer, Rosa | Rosa Köth-Schäfer | Actor | 1887 | 1 | |
| Kothari, Pratik | Pratik Kothari | Actor | 2014 | 1 | |
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