| Kirk, Jeffrey | Jeffrey Kirk | Dancer | 1989 - 1990 | 2 | 1 |
| Kruschke, Annett | Annett Kruschke | Actor, Choreographer, Director | 1988 - 2006 | 4 | 1 |
| Kiefel, Russell | Russell Kiefel | Actor | 1988 - 1989 | 2 | 1 |
| Kvietik, Štefan | Štefan Kvietik | Actor | 1972 - 1990 | 2 | 1 |
| Kjeld, Kristbjörg | Kristbjörg Kjeld | Actor | 1962 - 2011 | 4 | 1 |
| Koman, Jacek | Jacek Koman | Actor | 1990 | 5 | 1 |
| Kinge, Hans Jakob | Hans Jakob Kinge | Actor | 1953 - 2006 | 7 | 1 |
| Kulle, Gerthi | Gerthi Kulle | Actor | 1991 - 1993 | 15 | 1 |
| Kulle, Maria | Maria Kulle | Actor | 1992 | 1 | 1 |
| Kamnert, Kristina | Kristina Kamnert | Actor | 1992 - 1994 | 2 | 1 |
| Kötz, Franziska | Franziska Kötz | Dramaturg | 1992 - 2006 | 2 | 1 |
| Kraupa, Arpád | Arpád Kraupa | Actor | 1988 | 1 | 1 |
| Krappatsch, Sylvana | Sylvana Krappatsch | Actor | 1988 - 2004 | 5 | 1 |
| Kroll, Monika | Monika Kroll | Actor | 1992 - 2016 | 3 | 1 |
| Klas, Eri | Eri Klas | Conductor | 1992 | 1 | 1 |
| Kling, Gustav | Gustav Kling | Actor | 1989 | 1 | 1 |
| Kugrēna, Lāsma | Lāsma Kugrēna | Actor | 1991 | 1 | 1 |
| Kirsone, Inese | Inese Kirsone | Actor | 1991 | 1 | 1 |
| Kuple, Dina | Dina Kuple | Actor | 1964 - 1993 | 3 | 1 |
| Kuster, Anne-Marie | Anne-Marie Kuster | Actor | 1993 - 1996 | 2 | 1 |
| Knight, Ingle | Ingle Knight | Actor | 1993 | 1 | 1 |
| Kaljuste, Ülle | Ülle Kaljuste | Actor | 1993 - 1999 | 2 | 1 |
| Kováts, Adél | Adél Kováts | Actor | 1993 - 2008 | 3 | 1 |
| Köles, Ferenc | Ferenc Köles | Actor | 2008 | 1 | 1 |
| Kézdy, György | György Kézdy | Actor | 1965 - 1999 | 7 | 1 |
| Klejs, Signe | Signe Klejs | Designer | 2015 | 1 | 1 |
| Kelly, Daren | Daren Kelly | Actor | 1994 - 2001 | 3 | 1 |
| Kopit, Arthur | Arthur Kopit | Translator | 1982 - 2010 | 9 | 1 |
| Kiepe, Marcus | Marcus Kiepe | Actor | 1994 - 2005 | 10 | 1 |
| Kahra, Kalevi | Kalevi Kahra | Actor | 1966 - 1980 | 4 | 1 |
| Kratz, Steve | Steve Kratz | Actor | 1994 - 2007 | 3 | 1 |
| Korhonen, Kaisa | Kaisa Korhonen | Director | 1980 | 1 | 1 |
| Kotz, Adam | Adam Kotz | Actor | 2013 - 2015 | 4 | 1 |
| Kalezić, Milada | Milada Kalezić | Actor | 1994 - 2009 | 2 | 1 |
| Kačer, Jan | Jan Kačer | Actor, Adaptation, Director | 1993 - 1997 | 5 | 1 |
| Krodera, Olgerta | Oļģerts Kroders | Director | 1960 - 2005 | 6 | 1 |
| Koik, Külli | Külli Koik | Actor | 1997 | 1 | 1 |
| Kreismann, Kersti | Kersti Kreismann | Actor | 1978 - 2010 | 6 | 1 |
| Kuss, Richard | Richard Kuss | Actor | 1980 | 1 | 1 |
| Koch, Verena | Verena Koch | Actor | 1995 - 2004 | 5 | 1 |
| Klecker, Angela | Angela Klecker | Actor | 1996 | 1 | 1 |
| Költgen, Dennis | Dennis Költgen | Actor | 1995 | 1 | 1 |
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