| Kuykendall, Jason | Jason Kuykendall | Actor | 2001 | 2 | 1 |
| Kuźmiński, Marcin | Marcin Kuźmiński | Actor | 2007 - 2012 | 2 | |
| Konopiński, Maciej | Maciej Konopiński | Actor | 2011 - 2022 | 2 | |
| Kutnik, Marek | Marek Kutnik | Lighting Designer | 2009 | 2 | |
| Kireńczuk, Tomasz | Tomasz Kireńczuk | Dramaturg | 2009 | 2 | 1 |
| Krafftówna, Barbara | Barbara Krafftówna | Actor | 2007 | 2 | |
| Kominek, Karolina | Karolina Kominek | Actor | 2007 - 2009 | 2 | |
| Karczmarska, Anna Maria | Anna Maria Karczmarska | Costume Designer, Designer | 2006 | 2 | |
| Krawczuk, Adam | Adam Krawczuk | Actor | 2005 - 2007 | 2 | |
| Kumlin, Tom | Tom Kumlin | Lighting Designer | 2001 - 2007 | 2 | 1 |
| Köhler, Klaus | Klaus Köhler | Actor | 2006 - 2017 | 2 | 1 |
| Karlsén, Stephan | Stephan Karlsén | Actor | 1989 | 2 | |
| Kennedy, York | York Kennedy | Lighting Designer | 2006 - 2010 | 2 | |
| Kearney, Gillian | Gillian Kearney | Actor | 2006 | 2 | 1 |
| Krassnitzer, Harald | Harald Krassnitzer | Actor | 1989 | 2 | |
| Komissarenko, Elena | Elena Komissarenko | Actor | 2006 | 2 | 4 |
| Kudrjavcev, Sergej | Sergej Kudrjavcev | Actor | 2006 | 2 | 1 |
| Kopylova, Ol'ga | Ol'ga Kopylova | Actor | 2006 | 2 | |
| Kashiwa, Fumima | Fumima Kashiwa | Actor | 2007 | 2 | |
| Kotalawala, Sarath | Sarath Kotalawala | Actor | 2006 | 2 | |
| Kumarasinghe, Kumudu | Kumudu Kumarasinghe | Actor | 2006 | 2 | |
| Koren, Juliane | Juliane Koren | Actor | 1998 - 2001 | 2 | |
| Kumar Pramanik, Monoj | Monoj Kumar Pramanik | Actor | 2006 | 2 | |
| Khatun, Runa | Runa Khatun | Actor | 2006 | 2 | |
| Kappler, Sonja | Sonja Kappler | Actor | 2006 | 2 | |
| Körner, Ina | Ina Körner | Actor, Mask Maker | 2007 | 2 | 1 |
| Kocsis, Nela | Nela Kocsis | Actor | 1996 - 2007 | 2 | |
| Khatun Raha, Rehena | Rehena Khatun Raha | Actor | 2006 | 2 | |
| Khan, A M M Noor-Us-Saiyem | A M M Noor-Us-Saiyem Khan | Actor | 2006 | 2 | |
| Kumar Roy, Apurba | Apurba Kumar Roy | Actor | 2006 | 2 | |
| Khan, Alfee | Alfee Khan | Actor | 2006 | 2 | |
| Khalid, Kamol | Kamol Khalid | Composer | 2006 | 2 | |
| Kautter, Inken | Inken Kautter | Assistant Director | 2006 | 2 | |
| Kjærbye, Kuno | Kuno Kjærbye | Composer | 2006 | 2 | |
| Kallmeyer, Henner | Henner Kallmeyer | Director | 2006 - 2007 | 2 | |
| Kirilova, Anna | Anna Kirilova | Costume Designer, Designer | 2006 | 2 | |
| Kaul, Bansi | Bansi Kaul | Designer, Director | 2006 | 2 | |
| Kronzer, James | James Kronzer | Designer | 2006 | 2 | |
| Kornysheva, Daria | Daria Kornysheva | Costume Designer | 2007 - 2008 | 2 | |
| Kuggeleyn, Arthur | Arthur Kuggeleyn | Choreographer, Director | 2006 | 2 | 1 |
| Kroesinger, Hans-Werner | Hans-Werner Kroesinger | Choreographer, Director | 2006 | 2 | 1 |
| Kenny, Simon | Simon Kenny | Designer | 2014 | 2 | |
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