| Kollek, Peter | Peter Kollek | Actor | 1982 | 1 | |
| Koufakis, Nikos | Nikos Koufakis | Actor | 2014 - 2015 | 2 | |
| Kaufmann, Friedrich | Friedrich Kaufmann | Actor | 1982 | 1 | |
| Künzig, Georg | Georg Künzig | Actor | 1982 | 1 | |
| Kuryshev, Sergey | Sergey Kuryshev (Сергей Курышев) | Actor | 2013 | 1 | |
| Kozyrev, Sergey | Sergey Kozyrev (Сергей Козырев) | Actor | 2011 - 2013 | 2 | |
| Kleopina, Ekaterina | Ekaterina Kleopina (Екатерина Клеопина) | Actor | 2013 | 1 | |
| Kitamura, Mana | Mana Kitamura | Actor | 1994 | 1 | |
| Kanter, Catherine | Catherine Kanter | Actor | 1994 - 1995 | 6 | |
| Killick, David | David Killick | Actor | 1994 - 1996 | 15 | |
| Kükemezey, Vilma | Vilma Kükemezey | Actor | 1890 | 2 | |
| Kaczér, Nina | Nina Kaczér | Actor | 1890 - 1891 | 4 | |
| Kyd, Susan | Susan Kyd | Actor | 1980 | 1 | |
| Kahra, Kalevi | Kalevi Kahra | Actor | 1966 - 1980 | 4 | 1 |
| Kangas, Kaija | Kaija Kangas | Actor | 1980 | 1 | |
| Kujanpää, Ari | Ari Kujanpää | Actor | 1980 | 1 | |
| Kratz, Steve | Steve Kratz | Actor | 1994 - 2007 | 3 | 1 |
| Kanzaki, Ai | Ai Kanzaki | Actor | 1980 | 1 | |
| Kotsovoulou, Alina | Alina Kotsovoulou | Actor | 1994 | 1 | |
| Kourtaki, Dioni | Dioni Kourtaki | Actor | 2014 | 1 | |
| Kaletsanos, Ieronimos | Ieronimos Kaletsanos | Actor | 2014 - 2023 | 6 | |
| Koritzinsky, Marianne | Marianne Koritzinsky | Actor | 1980 | 1 | |
| Kolar, Helmuth | Helmuth Kolar | Actor | 1971 - 1980 | 2 | |
| Kallio, Pentti | Pentti Kallio | Actor | 1980 | 1 | |
| Kuosmanen, Martti | Martti Kuosmanen | Actor | 1980 | 1 | |
| Kotz, Adam | Adam Kotz | Actor | 2013 - 2015 | 4 | 1 |
| Konu, Leo | Leo Konu | Actor | 1980 | 1 | |
| Kramer, Gregory, C. | Gregory C. Kramer | Actor | 1980 | 1 | |
| Kinney, Terry | Terry Kinney | Actor | 1980 | 2 | |
| Kennedy, Dennis | Dennis Kennedy | Actor | 1980 | 1 | |
| Kahn, Robert | Robert Kahn | Actor | 1980 | 1 | |
| Kalezić, Milada | Milada Kalezić | Actor | 1994 - 2009 | 2 | 1 |
| Komi, Soila | Soila Komi | Actor | 1967 - 2005 | 4 | |
| Kelly, David, Blake | David Blake Kelly | Actor | 1980 | 1 | |
| Kamifuku, Koki | Koki Kamifuku | Actor | 1994 | 1 | |
| Kaye, Carol | Carol Kaye | Actor | 1980 | 1 | |
| Keeler, Melissa | Melissa Keeler | Actor | 1980 | 1 | |
| Kurasaki, Seiji | Seiji Kurasaki | Actor | 1994 | 1 | |
| Kunkel, Herbert | Herbert Kunkel | Actor | 1980 | 1 | |
| Kotrbová, Jorga | Jorga Kotrbová | Actor | 1980 - 2000 | 2 | |
| Kaňkovský, Václav | Václav Kaňkovský | Actor | 1979 - 2000 | 3 | |
| Komárek, Tomáš | Tomáš Komárek | Actor | 1993 - 1997 | 7 | |
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