| Kreuter, Horst | Horst Kreuter | Actor | 1949 - 1962 | 2 | |
| Kliegel, Leo | Leo Kliegel | Designer | 1943 - 1955 | 3 | |
| Knape, Gerhard | Gerhard Knape | Actor | 1950 | 1 | |
| Kahl, Hans Heinz | Hans Heinz Kahl | Actor | 1950 | 1 | |
| Kerkhof, Dorus | Dorus Kerkhof | Designer | 2008 | 1 | |
| Kennedy, Claire | Claire Kennedy | Actor | 1908 | 1 | |
| Katner, Myra | Myra Katner | Actor | 1965 | 1 | |
| Kelly, Martin, L. | Martin L. Kelly | Actor | 1965 | 1 | |
| Kleemann, Fredi | Fredi Kleemann | Actor | 1965 | 2 | |
| Kneidinger, Lola | Lola Kneidinger | Actor | 1965 | 1 | |
| Köhler, Kurt G. | Kurt G. Köhler | Actor | 1953 | 1 | |
| Korrontay, Michael | Michael Korrontay | Actor | 1955 | 3 | |
| Kofoed, Thorvald | Thorvald Kofoed | Director | 1900 | 1 | |
| Knowles, Jessie | Jessie Knowles | Actor | 2008 | 1 | |
| Krukowa, A.A | A.A Krukowa | Actor | 1912 | 1 | |
| Kay, Marysia | Marysia Kay | Actor, Director | 2008 | 4 | |
| Knight, Kelley | Kelley Knight | Actor | 2008 | 1 | |
| Kielly, Matt | Matt Kielly | Actor | 2008 | 2 | |
| Kawasaki, Soshun | Soshun Kawasaki | Actor | 2008 | 1 | |
| Khan, Ahsan, Reza | Ahsan Reza Khan | Composer | 2015 | 2 | |
| Kumar, Chandan | Chandan Kumar | Actor | 2015 | 1 | |
| Kumar, Vivek | Vivek Kumar | Actor | 2015 | 3 | |
| Kumar, Sikander | Sikandra Kumar | Actor | 2015 | 5 | |
| Kelton, Jane | Jane Kelton | Actor | 1905 | 1 | |
| Kaur, Gurinderjot | Gurinderjot Kaur | Actor | 2015 | 5 | |
| Kumar, Sanjeet | Sanjeet Kumar | Actor | 2015 | 6 | |
| Kamal, Rana, Santosh | Rana Santosh Kamal | Actor | 2015 | 5 | |
| Kühne, Wolfgang | Wolfgang Kühne | Actor | 1955 | 3 | |
| Köhler, Annemarie | Annemarie Köhler | Costume Designer | 1956 | 1 | |
| Kemper, Nina | Nina Kemper | Costume Designer | 1956 - 1973 | 2 | |
| Klose, Marte | Marte Klose | Actor | 1956 | 1 | |
| Kuttin, Aloyis | Aloyis Kuttin | Actor | 1956 | 1 | |
| Kraus, Liam | Liam Kraus | Actor | 2008 | 1 | |
| Kvalheim, Lars | Lars Kvalheim | Actor | 2008 | 1 | |
| Klever, Heinz | Heinz Klever | Actor | 1993 | 2 | |
| Knebel, Hans Dieter | Hans Dieter Knebel | Actor | 1994 - 2017 | 5 | |
| Klein, Hans Joachim | Hans Joachim Klein | Actor, Director | 1961 - 2003 | 4 | |
| Kretzer, Fritz | Fritz Kretzer | Actor | 1961 | 1 | |
| Kaulbach, Margret | Margret Kaulbach | Costume Designer | 1954 - 1963 | 3 | |
| Konstantinakou, Katerina | Katerina Konstantinakou | Dramaturg | 2008 - 2012 | 2 | |
| Konstantinakou, Panagiota | Panagiota Konstantinakou | Dramaturg | 2008 | 1 | |
| Kaloumenos, Periklis | Periklis Kaloumenos | Actor | 2008 | 1 | |
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