| Koller, Anne-Julia | Anne-Julia Koller | Actor | 2005 - 2006 | 6 | |
| Kollendt, Gusti | Gusti Kollendt | Actor | 1900 | 1 | |
| Kollek, Peter | Peter Kollek | Actor | 1982 | 1 | |
| Kollek, Helmut | Helmut Kollek | Actor | 1950 | 1 | |
| Kollberg, Eugen | Eugen Kollberg | Actor | 1921 | 1 | |
| Kollberg, Ernst | Ernst Kollberg | Actor | 1933 - 1963 | 3 | |
| Kollasch, Franz | Franz Kollasch | Actor | 1967 | 3 | |
| Kollaros, Nikos | Nikos Kollaros | Composer | 2006 | 1 | |
| Kollarik, Ágnes | Ágnes Kollarik | Actor | 2002 | 1 | |
| Kollár, Viktor | Viktor Kollár | Director | 2011 | 2 | |
| Kollakowsky, Norbert | Norbert Kollakowsky | Actor | 1969 | 1 | |
| Koll, Carlo | Carlo Koll | Actor | 1905 | 1 | |
| Kolkwitz, Paul | Paul Kolkwitz | Actor, Director | 1919 - 1934 | 3 | |
| Kolkustova, Natalija | Natalija Kolkustova | Actor | 2017 | 1 | |
| Kolitz, Hel. | Hel. Kolitz | Actor | 1899 | 1 | |
| Kolis, Rachel, Lee | Rachel Lee Kolis | Actor | 2017 | 1 | |
| Kolip, Manuel | Manuel Kolip | Designer | 2014 | 1 | |
| Kolin, Irmgard | Irmgard Kolin | Actor | 1985 | 1 | |
| Koliha, Petr | Petr Koliha | Producer | 1994 - 2004 | 2 | |
| Kolics, Ágota | Ágota Kolics | Director | 2015 | 1 | |
| Kölgen, Ulrike | Ulrike Kölgen | Actor | 1987 | 1 | |
| Koležnik, Mateja | Mateja Koležnik | Director | 2002 - 2022 | 9 | |
| Koležnik, Andrej | Andrej Koležnik | Lighting Designer | 2002 | 1 | |
| Koleva, Daniana | Daniana Koleva | Actor | 2010 | 1 | |
| Kolev, Svetoslav | Svetoslav Kolev | Translator | 1994 - 2006 | 4 | 1 |
| Koleszár, Péter, Bazil | Péter Bazil Koleszár | Actor | 2015 | 1 | |
| Kolesnikova, Tamara | Tamara Kolesnikova | Actor | 2011 | 1 | |
| Kolesnikov, Anton Andreyevich | Anton Andreyevich Kolesnikov (Анто́н Андре́евич Коле́сников) | Actor | 2022 | 1 | |
| Kolesnik, Konstantin | Konstantin Kolesnik | Actor | | 1 | |
| Kolesnichenko, Evgeniya | Evgeniya Kolesnichenko | Stage Manager | 2023 | 1 | |
| Kolesar, Irena | Irena Kolesar | Actor | 1961 | 1 | |
| Köles, Ferenc | Ferenc Köles | Actor | 2008 | 1 | 1 |
| Kölén, Anna | Anna Kölén | Adaptation | 2010 | 32 | 1 |
| Kolehmainen, Seppo | Seppo Kolehmainen | Actor | 1962 | 1 | |
| Kolehmainen, Eero-Pekka | Eero-Pekka Kolehmainen | Composer | 1995 - 1996 | 2 | |
| Kolegar, Jan | Jan Kolegar | Actor | 1997 | 1 | |
| Kolding, Mette | Mette Kolding | Actor | 1999 - 2000 | 3 | |
| Kolding, Axel | Axel Kolding | Actor | 1942 | 1 | |
| Koldenius, Jan | Jan Koldenius | Actor | 1985 - 2004 | 3 | 1 |
| Koldal, Britt | Britt Koldal | Costume Designer | 2002 | 3 | |
| Kold, Laura | Laura Kold | Actor | 2014 | 1 | |
| Kolczynski, Tomek | Tomek Kolczynski | Composer | 2013 | 1 | |
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