| Kennedy, Patricia | Patricia Kennedy | Actor | 1969 - 1971 | 2 | |
| Kiefel, Jörg | Jörg Kiefel | Designer | 2005 - 2006 | 2 | 1 |
| Knispel, Maia | Maia Knispel | Actor | 1998 | 2 | |
| Kavalieratou, Vasso | Vasso Kavalieratou | Actor | 2014 - 2015 | 2 | |
| Kubečka, Ivo | Ivo Kubečka | Actor | 1969 - 1993 | 2 | |
| Keach, Stacy | Stacy Keach | Actor | 1969 | 2 | 1 |
| Kloempken, Tina | Tina Kloempken | Costume Designer | 2014 - 2016 | 2 | |
| Kowski, Sebastian | Sebastian Kowski | Actor | 2010 - 2014 | 2 | 2 |
| Kuznick, Andreas | Andreas Kuznick | Actor | 2013 | 2 | |
| Klawonn, Julia | Julia Klawonn | Actor | 2013 | 2 | |
| Kwasinski, Ilena | Ilena Kwasinski | Actor | 1969 | 2 | |
| Kjær, Terje | Terje Kjær | Actor, Dancer | 1969 | 2 | |
| Knell, Cathy | Cathy Knell | Actor | 1969 | 2 | |
| Kalousová, Lenka | Lenka Kalousová | Costume Designer, Designer | 1997 | 2 | |
| Keim, Heidi | Heidi Keim | Actor | 1976 - 1997 | 2 | |
| Keim, Raimund | Raimund Keim | Actor | 1976 - 1997 | 2 | |
| Kütemeyer, Günter | Günter Kütemeyer | Actor | 1968 - 1971 | 2 | |
| Kalling, Rigmor | Rigmor Kalling | Choreographer | 1968 | 2 | |
| Knotek, Ivo | Ivo Knotek | Actor | 1965 - 1968 | 2 | |
| Kavner, Steve | Steve Kavner | Actor | 1968 | 2 | |
| Kleber, Irmgard | Irmgard Kleber | Actor | 1955 - 1968 | 2 | |
| Khanna, Harish | Harish Khanna | Actor | 2008 | 2 | 1 |
| Kapur, Anuradha | Anuradha Kapur | Director | 2008 | 2 | 1 |
| Knox, Alexander | Alexander Knox | Actor | 1968 | 2 | |
| Knagenhjelm, Hans Petter | Hans Petter Knagenhjelm | Actor | 1968 | 2 | 1 |
| Kornfeld, Edna | Edna Kornfeld | Translator | 1966 - 1968 | 2 | |
| Kubíček, Evžen | Evžen Kubíček | Adaptation, Director | 1967 | 2 | |
| Kölbl, Elisabeth | Elisabeth Kölbl | Actor | 1966 - 1967 | 2 | 1 |
| Krasser, Ute | Ute Krasser | Actor | 1966 - 1967 | 2 | |
| Kraßnitzer, Hanns | Hanns Kraßnitzer | Actor | 1954 - 1967 | 2 | |
| Kayssler, Martin | Martin Kayssler | Actor, Director | 1967 - 1976 | 2 | |
| Keskitalo, Eero | Eero Keskitalo | Actor | 1966 - 1967 | 2 | |
| Kawabe, Kyuzo | Kyuzo Kawabe | Actor | 1967 | 2 | |
| Kulka, János | János Kulka | Actor | 1988 - 2013 | 2 | |
| King, Anthony | Anthony King | Actor | 1967 | 2 | |
| Krstić, Ljiljana | Ljiljana Krstić | Actor | 1967 - 1968 | 2 | |
| Kyriazis, Varnavas | Varnavas Kyriazis | Actor, Director | 2003 - 2004 | 2 | |
| Kothe, Manfred | Manfred Kothe | Actor | 1956 - 1966 | 2 | |
| Krulišová, Jarmila | Jarmila Krulišová | Actor | 1947 - 1966 | 2 | |
| Kampf, Zdenĕk | Zdenĕk Kampf | Actor | 1960 - 1966 | 2 | |
| Krohn, Heidi | Heidi Krohn | Actor | 1966 - 1973 | 2 | |
| Kollex, Astrid | Astrid Kollex | Actor | 1966 | 2 | |
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