| 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 |
| Kahn, Ian | Ian Kahn | Actor | 1996 | 1 | 1 |
| Kadow, Siegfried | Siegfried Kadow | Actor | 1996 - 2000 | 4 | 1 |
| Keck, Sandra | Sandra Keck | Actor | 1995 | 1 | 1 |
| Krawczyk, Jan | Jan Krawczyk | Actor | 1996 - 2006 | 3 | 1 |
| Kellosalo, Annele | Annele Kellosalo | Actor | 1996 | 1 | 1 |
| Kikinčuk, Pavel | Pavel Kikinčuk | Actor | 1996 - 2002 | 4 | 1 |
| Köhler, Juliane | Juliane Köhler | Actor | 1995 | 8 | 1 |
| Kirchhoff, Jürgen | Jürgen Kirchhoff | Actor | 1995 - 2005 | 5 | 1 |
| Keijser, Ted | Ted Keijser | Adaptation | 2002 | 1 | 1 |
| Kübler, Samuel, Lukas | Samuel Lukas Kübler | Actor | 2002 | 3 | 1 |
| Kukla, Otto | Otto Kukla | Actor, Designer, Director | 2003 - 2013 | 5 | 1 |
| Kramer, Felix | Felix Kramer | Actor | 2005 | 1 | 1 |
| Kastler, Heide | Heide Kastler | Costume Designer | 2003 - 2014 | 7 | 1 |
| Kiefel, Jörg | Jörg Kiefel | Designer | 2005 - 2006 | 2 | 1 |
| Keach, Stacy | Stacy Keach | Actor | 1969 | 2 | 1 |
| Kirchner, Alfred | Alfred Kirchner | Designer, Director | 1977 - 2013 | 7 | 1 |
| Kvamme, Kim | Kim Kvamme | Actor | 2015 | 1 | 1 |
| Krüger, Isis | Isis Krüger | Actor | 1997 | 1 | 1 |
| Khanna, Harish | Harish Khanna | Actor | 2008 | 2 | 1 |
| Kapur, Anuradha | Anuradha Kapur | Director | 2008 | 2 | 1 |
| Kruse, Jonas | Jonas Kruse | Actor | 2004 | 1 | 1 |
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