| Keller, Heinz | Heinz Keller | Actor | 1989 - 1992 | 2 | |
| Kohnle, Hans | Hans Kohnle | Actor | 1977 - 1992 | 2 | |
| Karafyllis, Simos | Simos Karafyllis | Costume Designer, Designer | 1992 | 2 | |
| Kastoura, Sasa | Sasa Kastoura | Actor | 1989 | 2 | |
| Korterink, Thea | Thea Korterink | Actor | 1978 - 1982 | 2 | |
| Kaladamis, Manolis | Manolis Kaladamis | Costume Designer, Designer | 1982 | 2 | |
| Karlsson, Þráinn | Þráinn Karlsson | Actor | 1993 - 1998 | 2 | |
| Kuster, Anne-Marie | Anne-Marie Kuster | Actor | 1993 - 1996 | 2 | 1 |
| Kaljuste, Ülle | Ülle Kaljuste | Actor | 1993 - 1999 | 2 | 1 |
| Kačič, Mila | Mila Kačič | Actor | 1951 - 1991 | 2 | |
| Kallivokas, Dimitris | Dimitris Kallivokas | Actor | 1993 - 1994 | 2 | |
| Krauel, Martina | Martina Krauel | Actor | 1993 | 2 | |
| Kovacs, Lajos | Lajos Kovacs | Actor, Choreographer | 1965 - 1993 | 2 | |
| Kypourgos, Nikos | Nikos Kypourgos | Composer | 1991 - 1994 | 2 | |
| Karaïndrou, Eleni | Eleni Karaïndrou | Composer | 1991 - 2004 | 2 | |
| Kürstner, Thomas | Thomas Kürstner | Composer, Musical Director | 2002 - 2012 | 2 | |
| Kleinke, Dirk | Dirk Kleinke | Actor | 2014 | 2 | |
| Kennedy, Ashley York | Ashley York Kennedy | Lighting Designer | 1994 - 1995 | 2 | |
| Kaiser, Karin | Karin Kaiser | Actor | 1967 - 1982 | 2 | |
| Kordes, Heidrun | Heidrun Kordes | Actor | 1982 - 1994 | 2 | |
| Kaetzler, Johannes | Johannes Kaetzler | Actor, Director | 1982 | 2 | |
| Koufakis, Nikos | Nikos Koufakis | Actor | 2014 - 2015 | 2 | |
| Kozyrev, Sergey | Sergey Kozyrev (Сергей Козырев) | Actor | 2011 - 2013 | 2 | |
| Kükemezey, Vilma | Vilma Kükemezey | Actor | 1890 | 2 | |
| Kolar, Helmuth | Helmuth Kolar | Actor | 1971 - 1980 | 2 | |
| Kinnari, Irene | Irene Kinnari | Actor, Costume Designer | 1980 | 2 | |
| Kinney, Terry | Terry Kinney | Actor | 1980 | 2 | |
| Kalezić, Milada | Milada Kalezić | Actor | 1994 - 2009 | 2 | 1 |
| Kotrbová, Jorga | Jorga Kotrbová | Actor | 1980 - 2000 | 2 | |
| Kouřilová, Dagmar | Dagmar Kouřilová | Actor | 1994 - 1997 | 2 | |
| Kotva, Václav | Václav Kotva | Actor | 1994 - 1997 | 2 | |
| Kodetová, Barbara | Barbara Kodetová | Actor | 1994 - 1997 | 2 | |
| Karner, Gerhard | Gerhard Karner | Actor | 1997 - 2003 | 2 | |
| Kunkel, Wolfram | Wolfram Kunkel | Actor | 1997 - 2010 | 2 | |
| Käpyaho, Mauno | Mauno Käpyaho | Actor | 1980 | 2 | |
| Kröhn, Marte | Marte Kröhn | Costume Designer | 1996 - 1998 | 2 | |
| Karlsson, Jeanette | Jeanette Karlsson | Actor | 1995 | 2 | |
| Konrádová, Kamila | Kamila Konrádová | Dramaturg | 1996 - 2012 | 2 | |
| Krauze, Ewa | Ewa Krauze | Costume Designer | 1997 - 2009 | 2 | |
| Kojima, Yumiko | Yumiko Kojima | Actor | 1996 - 1997 | 2 | |
| Kiuchi, Naomi | Naomi Kiuchi | Actor | 1996 - 1997 | 2 | |
| Kayser, Wiebke | Wiebke Kayser | Actor | 1996 - 2010 | 2 | |
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