| Kurosawa, Makiko | Makiko Kurosawa | Actor | 2000 | 1 | |
| Kobboldt, Dietmar | Dietmar Kobboldt | Director | 2000 | 1 | |
| Kahanovitz, Lexie | Lexie Kahanovitz | Actor | 2000 | 1 | 1 |
| Keskenović, Biljana | Biljana Keskenović | Actor | 2000 | 1 | |
| Kovačević, Ivana | Ivana Kovačević | Actor | 2000 | 1 | |
| Kovjanić, Dubravka | Dubravka Kovjanić | Actor | 2000 | 3 | |
| Kutlešić, Jovan | Jovan Kutlešić | Actor | 2000 | 1 | |
| Kovačević, Snežana | Snežana Kovačević | Costume Designer | 2000 | 1 | |
| Kark, Tõnu | Tõnu Kark | Actor | 1999 - 2019 | 3 | |
| Kaderk, Manfred | Manfred Kaderk | Designer | 1999 - 2018 | 7 | |
| Klette, Michael | Michael Klette | Director | 1999 - 2015 | 2 | |
| Koroly, Charles | Charles Koroly | Costume Designer, Designer, Sound Designer | 1999 - 2014 | 8 | 1 |
| Kostolevskij, Igor | Igor Kostolevskij | Actor | 1999 - 2013 | 2 | |
| Kimoulis, Giorgos | Giorgos Kimoulis | Actor, Translator | 1999 - 2013 | 4 | |
| Kreß, Janine | Janine Kreß | Actor | 1999 - 2012 | 4 | 3 |
| Krautz, Steffi | Steffi Krautz | Actor | 1999 - 2011 | 4 | |
| Krischke, Stefan | Stefan Krischke | Actor | 1999 - 2011 | 14 | |
| Kuhl, Annika | Annika Kuhl | Actor | 1999 - 2011 | 4 | 1 |
| Klaers, Michael | Michael Klaers | Lighting Designer | 1999 - 2010 | 2 | |
| Kokko-Saukkonen, Leena | Leena Kokko-Saukkonen | Actor | 1999 - 2008 | 8 | 1 |
| Komulainen, Eeva-Kirsti | Eeva-Kirsti Komulainen | Actor | 1999 - 2008 | 4 | |
| Klem, Jiří | Jiří Klem | Actor | 1999 - 2008 | 4 | 1 |
| Kaminsky, Andrej | Andrej Kaminsky | Actor | 1999 - 2007 | 3 | |
| Kovács, Edit | Edit Kovács | Actor | 1999 - 2007 | 3 | 1 |
| Kornmüller, Jacqueline | Jacqueline Kornmüller | Director | 1999 - 2005 | 3 | 1 |
| Kovács, Andrea | Andrea Kovács | Costume Designer | 1999 - 2002 | 2 | 1 |
| Kuhnhold, Sabrina | Sabrina Kuhnhold | Actor | 1999 - 2000 | 2 | |
| Kravčenko, V. | V. Kravčenko | Actor | 1999 - 2000 | 2 | |
| Kabanova, L. | L. Kabanova | Actor | 1999 - 2000 | 2 | |
| Kromvoll, Espen | Espen Kromvoll | Actor | 1999 - 2000 | 4 | |
| Kolding, Mette | Mette Kolding | Actor | 1999 - 2000 | 3 | |
| Kališová, Jana | Jana Kališová | Director | 1999 | 1 | |
| Kasincev, Igor | Igor Kasincev | Actor | 1999 | 1 | |
| Kauppinen, Riku | Riku Kauppinen | Lighting Designer, Sound Designer | 1999 | 10 | |
| Kizinkiewicz, Magdalena | Magdalena Kizinkiewicz | Actor | 1999 | 1 | |
| Klang, Oskar | Oskar Klang | Actor | 1999 | 1 | |
| Kline, Joanna | Joanna Kline | Actor | 1999 | 1 | |
| Kurtz, Kristin | Kristin Kurtz | Actor | 1999 | 1 | |
| Kyriacou, Koullis | Koullis Kyriacou | Actor | 1999 | 1 | |
| Keip, Thomas | Thomas Keip | Costume Designer, Designer | 1999 | 2 | |
| Kuhn, Drazen | Drazen Kuhn | Actor | 1999 | 1 | |
| Kuykendall, Saisha | Saisha Kuykendall | Actor | 1999 | 1 | |
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