| Kahn, Catherine | Catherine Kahn | Designer, Director | 2004 - 2005 | 10 | 1 |
| Klovholt, Anne Regine | Anne Regine Klovholt | Adaptation, Designer, Director | 2004 - 2005 | 15 | 1 |
| Kvarnevik, Klas | Klas Kvarnevik | Actor | 2004 | 1 | 1 |
| Kudláčková, Johana | Johana Kudláčková | Dramaturg | 2005 - 2006 | 2 | 1 |
| Kostková, Zorka | Zorka Kostková | Actor | 2005 - 2006 | 2 | 1 |
| Kaljujärv, Hannes | Hannes Kaljujärv | Actor | 2004 | 1 | 1 |
| Krebs, Horst | Horst Krebs | Actor | 2004 - 2015 | 2 | 1 |
| Keinath, Heike | Heike Keinath | Costume Designer | 2004 | 1 | 1 |
| Kolubkov, Aleksej | Aleksej Kolubkov | Actor | 2001 - 2004 | 2 | 1 |
| Kurdjubova, Natalja | Natalja Kurdjubova | Actor | 2001 - 2004 | 2 | 1 |
| Karbauskis, Mindaugas | Mindaugas Karbauskis | Director | 2001 - 2004 | 2 | 1 |
| Kostecka, Oliver | Oliver Kostecka | Designer | 2004 | 2 | 1 |
| Krief, Norah | Norah Krief | Actor | 2005 | 5 | 1 |
| Kolářová, Miroslava | Miroslava Kolářová | Actor | 2000 | 1 | 1 |
| Krantz, Marquam | Marquam Krantz | Actor | 2005 | 1 | 1 |
| Krajnov, Jugoslav | Jugoslav Krajnov | Actor | 2005 | 1 | 1 |
| Kodet, Jiří | Jiří Kodet | Actor | 1993 | 1 | 1 |
| Kleinová, Vlasta | Vlasta Kleinová | Actor | 1955 | 1 | 1 |
| Koukal, Bohumír | Bohumír Koukal | Actor | 1941 - 1955 | 2 | 1 |
| Koláček, Josef | Josef Koláček | Actor | 1955 | 1 | 1 |
| Kahnert, Janning | Janning Kahnert | Actor | 2005 - 2016 | 7 | 1 |
| Kerzmann, Anita | Anita Kerzmann | Adaptation, Dramaturg | 2005 | 2 | 1 |
| Kukkola, Katja | Katja Kukkola | Actor | 2001 | 2 | 1 |
| Kulíšková, Táňa | Táňa Kulíšková | Actor | 1999 | 1 | 1 |
| Karnasová, Andrea | Andrea Karnasová | Actor | 1999 | 1 | 1 |
| Kuykendall, Jason | Jason Kuykendall | Actor | 2001 | 2 | 1 |
| Krajewski-Bola, Andrzej, B. | Andrzej B. Krajewski-Bola | Translator | 2005 - 2012 | 5 | 1 |
| Kireńczuk, Tomasz | Tomasz Kireńczuk | Dramaturg | 2009 | 2 | 1 |
| Kumlin, Tom | Tom Kumlin | Lighting Designer | 2001 - 2007 | 2 | 1 |
| Knaack, Peter | Peter Knaack | Actor | 2005 - 2017 | 5 | 1 |
| Köhler, Klaus | Klaus Köhler | Actor | 2006 - 2017 | 2 | 1 |
| Kemp, Robert | Robert Kemp | Designer | 1989 | 1 | 1 |
| Kilroy, Thomas | Thomas Kilroy | Adaptation | 1989 - 2015 | 3 | 1 |
| Kearney, Gillian | Gillian Kearney | Actor | 2006 | 2 | 1 |
| Kudrjavcev, Sergej | Sergej Kudrjavcev | Actor | 2006 | 2 | 1 |
| König, Anne-Sylvie | Anne-Sylvie König | Adaptation, Dramaturg | 2006 - 2007 | 10 | 1 |
| Kuhl, Adam | Adam Kuhl | Actor | 2006 | 1 | 1 |
| Körner, Ina | Ina Körner | Actor, Mask Maker | 2007 | 2 | 1 |
| Kasser, Annina | Annina Kasser | Actor | 2007 | 1 | 1 |
| Khamsi, Nourdin | Nourdin Khamsi | Actor | 2007 | 1 | 1 |
| Kingsley, Ben | Ben Kingsley | Actor | 2017 | 1 | 1 |
| Kersten, Daniel | Daniel Kersten | Actor | 2007 | 7 | 1 |
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