| Kostić, Deana | Deana Kostić | Actor | 1999 | 1 | |
| Krämer, Susanne | Susanne Krämer | Actor | 1999 | 2 | |
| Kraus, Marion | Marion Kraus | Actor | 1999 | 4 | |
| Kunze, Ulrike | Ulrike Kunze | Costume Designer, Designer | 1999 | 2 | |
| Klöhn, André | André Klöhn | Actor | 1999 | 3 | |
| Kättner, Christine | Christine Kättner | Actor | 1999 | 2 | |
| Kurecki, Beate | Beate Kurecki | Actor | 1999 | 2 | |
| Kalina, Sigrid | Sigrid Kalina | Actor | 1999 | 1 | |
| Kakari, Shuhei | Shuhei Kakari | Sound Designer | 1999 | 1 | |
| Kindinov, Evgeny | Evgeny Kindinov | Actor | 1999 | 1 | |
| Karpekina, Tatjana | Tatjana Karpekina | Actor | 1999 | 1 | |
| Kokurina, Larisa | Larisa Kokurina | Actor | 1999 | 1 | |
| Kazakov, Sergej | Sergej Kazakov | Actor | 1999 | 1 | |
| Kopyto, Erica | Erica Kopyto | Actor | 1999 | 2 | |
| Kokotailo, Lori | Lori Kokotailo | Actor | 1999 | 1 | |
| Knezevich, Steven | Steven Knezevich | Musician | 1999 | 1 | |
| Kristen, Siegfried | Siegfried Kristen | Actor | 1999 | 1 | |
| Kiss, László Felhőfi | László Felhőfi Kiss | Designer, Director | 1999 | 2 | |
| Keil, - | - Keil | Actor | 1999 | 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 | |
| Kovács, Andrea | Andrea Kovács | Costume Designer | 1999 - 2002 | 2 | |
| Kornmüller, Jacqueline | Jacqueline Kornmüller | Director | 1999 - 2005 | 3 | |
| Kaminsky, Andrej | Andrej Kaminsky | Actor | 1999 - 2007 | 3 | |
| Kovács, Edit | Edit Kovács | Actor | 1999 - 2007 | 3 | |
| 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 | |
| Klaers, Michael | Michael Klaers | Lighting Designer | 1999 - 2010 | 2 | |
| Kark, Tõnu | Tõnu Kark | Actor | 1999 - 2010 | 2 | |
| Krautz, Steffi | Steffi Krautz | Actor | 1999 - 2011 | 4 | |
| Krischke, Stefan | Stefan Krischke | Actor | 1999 - 2011 | 14 | |
| Kuhl, Annika | Annika Kuhl | Actor | 1999 - 2011 | 4 | |
| Kreß, Janine | Janine Kreß | Actor | 1999 - 2012 | 4 | 3 |
| Kostolevskij, Igor | Igor Kostolevskij | Actor | 1999 - 2013 | 2 | |
| Kimoulis, Giorgos | Giorgos Kimoulis | Actor, Translator | 1999 - 2013 | 4 | |
| Koroly, Charles, | Charles Koroly | Costume Designer, Designer, Sound Designer | 1999 - 2014 | 8 | |
| Klette, Michael | Michael Klette | Director | 1999 - 2015 | 2 | |
| Kaderk, Manfred | Manfred Kaderk | Designer | 1999 - 2018 | 7 | |
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