| Kica, Janusz | Janusz Kica | Director | 2009 - 2016 | 5 | 1 |
| Kraehahn, Arno | Arno Kraehahn | Composer | 2009 - 2016 | 5 | |
| Keränen, Elias | Elias Keränen | Actor | 2009 | 5 | |
| Kaiser, Rudolf | Rudolf Kaiser | Actor | 2011 | 5 | |
| Kuenti, Sam | Sam Kuenti | Actor | 2011 | 5 | |
| Korbel, Tonya | Tonya Korbel | Actor | 2011 | 5 | |
| Krause, Kay | Kay Krause | Actor | 1998 - 2014 | 5 | |
| Knapp, Terence | Terence Knapp | Actor | 1964 - 1965 | 5 | |
| Kropf, Robert | Robert Kropf | Actor, Adaptation, Designer, Director | 2012 - 2017 | 5 | |
| Kranz, Mario | Mario Kranz | Actor | 1953 - 1964 | 5 | |
| Karatza, Tonia | Tonia Karatza | Actor | 1961 - 1997 | 5 | |
| Kypraiou, Eleni | Eleni Kypraiou | Actor | 1961 - 1997 | 5 | |
| Kozomara, Ivana | Ivana Kozomara | Actor | 2011 | 5 | |
| Kettenis, Karina | Karina Kettenis | Actor | 2014 | 5 | |
| Kelling, Coba | Coba Kelling | Actor | 1956 | 5 | |
| Kamili, Charis | Charis Kamili | Actor | 1950 - 1952 | 5 | |
| Kennedy, Michael | Michael Kennedy | Actor | 1935 - 1951 | 5 | |
| Ksienzyk, Andreas | Andreas Ksienzyk | Actor | 2000 | 5 | |
| Krontira, Mairi | Mairi Krontira | Actor | 1933 - 1935 | 5 | |
| Kerner, Debi | Debi Kerner | Actor | 1999 | 5 | |
| Kain, Christine | Christine Kain | Actor | 1977 | 5 | |
| Kerky, Dietrich | Dietrich Kerky | Actor | 1977 | 5 | |
| Kopf, Markus | Markus Kopf | Director | 2017 - 2018 | 5 | |
| Kühne, Mike | Mike Kühne | Assistant Director | 2017 - 2018 | 5 | |
| Käser, Martin | Martin Käser | Designer | 2018 | 5 | |
| Kühl, Michael | Michael Kühl | Actor | 2018 | 5 | |
| Komorr, Ralf | Ralf Komorr | Actor | 2018 | 5 | |
| Kuhn, Marta | Marta Kuhn | Actor | 1911 - 1914 | 5 | |
| Koškina, Evgenija | Evgenija Koškina | Dancer | 2016 - 2019 | 5 | |
| Križman Hudernik, Tijuana | Tijuana Križman Hudernik | Dancer | 2016 - 2019 | 5 | |
| Krajnc Bagola, Iva | Iva Krajnc Bagola | Actor | 2015 | 5 | |
| Kalamou, Moussa | Moussa Kalamou | Actor | 2021 | 5 | |
| Kraakman, Maria | Maria Kraakman | Actor | 2017 - 2021 | 5 | |
| Kaminski, Roman | Roman Kaminski (Roman Kaminski) | Actor | 1990 - 2004 | 6 | |
| Knoth, Hilde | Hilde Knoth (Hilde Knoth) | Actor | 1916 - 1929 | 6 | |
| Knutson, Eric | Eric Knutson (Eric Knutson) | Actor | 2002 - 2005 | 6 | 2 |
| Krakowski, Wojciech | Wojciech Krakowski (Wojciech Krakowski) | Designer | 1957 - 1975 | 6 | |
| Krass, Michael | Michael Krass (Michael Krass) | Costume Designer | 1993 - 2017 | 6 | |
| Kreidl, Heinz | Heinz Kreidl (Heinz Kreidl) | Director | 1977 - 2003 | 6 | |
| Kulke, Konrad | Konrad Kulke (Konrad Kulke) | Costume Designer, Designer | 1964 - 2005 | 6 | |
| Kunze, Ulrich | Ulrich Kunze (Ulrich Kunze) | Actor | 1986 - 2012 | 6 | |
| Kupfer, Bettina | Bettina Kupfer (Bettina Kupfer) | Actor | 1990 - 1992 | 6 | |
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