| Kostov, Dimitar | Dimitar Kostov | Actor | 1976 | 1 | |
| Kostousov, V. | V. Kostousov | Actor | 1987 | 1 | |
| Kostorž, Jurij | Jurij Kostorž (Jurij Kostorž) | Actor | 1986 - 1990 | 2 | |
| Kostopoulou, Niovi | Niovi Kostopoulou | Actor | 2009 | 2 | |
| Kostopoulos, Nassos | Nassos Kostopoulos | Actor | 2003 | 1 | |
| Kostopoulos, Michalis | Michalis Kostopoulos | Actor | 1984 | 1 | |
| Kostopoulos, Lampros | Lampros Kostopoulos | Director | 1972 - 1989 | 4 | |
| Kostolitz, Stefan | Stefan Kostolitz (Stefan Kostolitz) | Actor | 2010 | 1 | |
| Kostolevskij, Igor | Igor Kostolevskij (Igor Kostolevskij) | Actor | 1999 - 2013 | 2 | |
| Köstlinger, Maria | Maria Köstlinger (Maria Köstlinger) | Actor | 2005 - 2012 | 5 | 5 |
| Köstlin, Reinhold | Reinhold Köstlin (Reinhold Köstlin) | Actor | 1923 | 1 | |
| Köstlin, Karl | Karl Köstlin (Karl Köstlin) | Actor | 1911 - 1928 | 6 | |
| Kostková, Zorka | Zorka Kostková | Actor | 2005 - 2006 | 2 | |
| Kostková, A. | A. Kostková | Actor | 1941 | 1 | |
| Kostka, Petr | Petr Kostka | Actor | 1964 - 2016 | 8 | |
| Kostka, Jiří | Jiří Kostka | Actor | 1942 - 1966 | 3 | |
| Kostka, Ant. | Ant. Kostka | Actor | 1941 | 1 | |
| Kostina, K. | K. Kostina | Designer | 1918 | 1 | |
| Kostin, K.K. | K.K. Kostin | Designer | 1908 | 1 | |
| Kostić, Olivera | Olivera Kostić | Actor | 1979 | 1 | |
| Kostić, Dunja | Dunja Kostić | Assistant Director | 2021 | 1 | |
| Kostić, Deana | Deana Kostić | Actor | 1999 | 1 | |
| Kösters, Johannes, M. | Johannes M. Kösters | Actor | 1996 | 1 | |
| Kosterka, Hugo | Hugo Kosterka (Hugo Kosterka) | Translator | 1903 - 1947 | 5 | |
| Koster, Quincy | Quincy Koster | Actor | 2011 | 1 | |
| Köster, Liselotte | Liselotte Köster | Dancer | 1954 | 1 | |
| Köster, Gundula | Gundula Köster | Actor | 1993 | 1 | |
| Koster, Franz | Franz Koster | Actor | 1894 - 1908 | 4 | |
| Köstem, Şebnem | Şebnem Köstem (Sebnem Kostem) | Actor | 2012 | 1 | |
| Kostecki, Wojciech | Wojciech Kostecki | Actor | 1973 | 1 | |
| Kostecka, Oliver | Oliver Kostecka | Designer | 2004 | 2 | |
| Kostantaras, Lampros | Lampros Kostantaras | Actor | 1952 | 1 | |
| Kostakis, Iraklis | Iraklis Kostakis | Actor | 2005 | 2 | |
| Kostadinova, Hristina | Hristina Kostadinova | Actor | 1979 | 1 | |
| Kostadinov, Kalin | Kalin Kostadinov | Actor | 2015 - 2016 | 2 | |
| Kostadinov, Georgi | Georgi Kostadinov | Actor | 1997 | 1 | |
| Koßwig, Curt | Curt Koßwig (Curt Koßwig) | Actor | 1914 | 2 | |
| Kossowsky, Jorge | Jorge Kossowsky | Assistant Director, Director | 1952 - 1956 | 3 | |
| Kossovsky, Sylvia | Sylvia Kossovsky | Actor | 1934 | 1 | |
| Kossi, Enrique | Enrique Kossi | Actor | 1972 | 1 | |
| Kossegg, Therese | Therese Kossegg | Actor | 1907 - 1928 | 4 | |
| Kosse, Grit | Grit Kosse | Mask Maker | 1994 | 1 | |
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