| Kavenaugh, Dorrie | Dorrie Kavenaugh | Actor | 1977 | 1 | |
| Kiss, Irén | Irén Kiss | Actor | 1928 | 3 | |
| Kent, Sherryn | Sherryn Kent | Actor | 1973 | 1 | |
| Knauthe, Günther | Günther Knauthe | Actor | 1973 | 1 | |
| Koolschijn, Hugo | Hugo Koolschijn | Actor | 1973 - 2003 | 39 | 1 |
| Kaiser, - | - Kaiser | Actor | 1928 | 1 | |
| Kotzé, J. | J. Kotzé | Actor | 1928 | 1 | |
| Kreysern, Eberhard | Eberhard Kreysern | Actor | 1920 - 1928 | 2 | |
| Krogh, Arne | Arne Krogh | Actor | 1928 - 1935 | 3 | |
| Kingsley, Susan, Cardwell | Susan Cardwell Kingsley | Actor | 1972 | 1 | |
| Klein, Barbara | Barbara Klein | Actor | 1975 - 1991 | 2 | |
| Klingenberg, Axel | Axel Klingenberg | Actor | 1975 | 1 | |
| Kämpfer, Julika | Julika Kämpfer | Actor | 1973 | 1 | |
| Kepich, Holger | Holger Kepich | Actor | 1973 | 1 | |
| Kayser, Frode | Frode Kayser | Actor | 1978 | 1 | |
| König, Wilhelm | Wilhelm König | Actor | 1960 - 1973 | 3 | |
| Kohlund, Christian | Christian Kohlund | Actor | 1973 | 1 | |
| Karlsson, Jon | Jon Karlsson | Actor | 2006 | 2 | 1 |
| Klinga, Elin | Elin Klinga | Actor | 2006 | 2 | 1 |
| Koné, Manibi | Manibi Koné | Actor | 2002 | 2 | |
| Kruse, Jan | Jan Kruse | Actor | 1998 | 2 | |
| Keresztes, Tamás | Tamás Keresztes | Actor | 2007 - 2019 | 9 | 1 |
| Kovács, Angela | Angela Kovács | Actor | 1991 - 2013 | 28 | 1 |
| Kammer, Friederike | Friederike Kammer | Actor | 2003 - 2007 | 6 | 1 |
| Kröger, Ruth Marie | Ruth Marie Kröger | Actor | 2000 - 2007 | 7 | 1 |
| Kitzl, Albert | Albert Kitzl | Actor | 1966 - 2008 | 13 | 1 |
| Klintrup, Anna-Maria | Anna-Maria Klintrup | Actor | 1995 - 1996 | 2 | |
| Kiiskinen, Vera | Vera Kiiskinen | Actor | 1995 - 1996 | 2 | |
| Kabre, Athanase | Athanase Kabre | Actor | 1992 | 2 | |
| Kabore, Mathieu | Mathieu Kabore | Actor | 1992 | 1 | |
| Kalinina, Elena | Elena Kalinina | Actor | 1996 - 2013 | 2 | |
| Kiszkis, Jerzy | Jerzy Kiszkis | Actor | 1992 - 2001 | 3 | |
| Kolak, Dorota | Dorota Kolak | Actor | 1992 - 2001 | 3 | |
| Kluźniak, Dominika | Dominika Kluźniak | Actor | 2005 - 2019 | 5 | |
| Kundler, Andreas | Andreas Kundler | Actor | 2007 - 2016 | 8 | 2 |
| Krepper, Magnus | Magnus Krepper | Actor | 2007 - 2012 | 6 | 2 |
| Kazragyte, Doloresa | Doloresa Kazragyte | Actor | 1998 - 2000 | 4 | |
| Kirchhoff, Corinna | Corinna Kirchhoff | Actor | 1993 - 2013 | 5 | 1 |
| Kogge, Imogen | Imogen Kogge | Actor | 1993 - 2006 | 5 | 1 |
| Kranidiotis, Panos | Panos Kranidiotis | Actor | 1990 - 1991 | 2 | |
| Kopernikus, Nicolaj | Nicolaj Kopernikus | Actor | 2006 | 2 | 2 |
| Knop, Václav | Václav Knop | Actor | 1990 - 1995 | 4 | |
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