| Klein, Nita | Nita Klein | Actor | 1989 | 1 | |
| Kerckhoffs, Han | Han Kerckhoffs | Actor | 1990 - 2013 | 30 | |
| Krystoph, Volker | Volker Krystoph | Actor | 1958 - 1988 | 3 | |
| Koshevaya, Anzhelika | Anzhelika Koshevaya (Анжелика Кошевая) | Actor | 2011 | 1 | |
| Kepros, Nicholas | Nicholas Kepros | Actor | 1960 - 1988 | 6 | |
| Keith, Warren | Warren Keith | Actor | 1988 - 2003 | 2 | |
| Kerr, Patrick | Patrick Kerr | Actor | 1988 - 2006 | 2 | 2 |
| Křenek, Emanuel | Emanuel Křenek | Actor | 1965 - 1988 | 2 | |
| Kyritsis, Giorgos | Giorgos Kyritsis | Actor | 1990 | 1 | |
| Kresta, Eirini | Eirini Kresta | Actor | 1990 | 1 | |
| Kiefel, Russell | Russell Kiefel | Actor | 1988 - 1989 | 2 | 1 |
| Kingelin, Juha | Juha Kingelin | Actor | 1988 | 1 | |
| Kruger, Beatrice | Beatrice Kruger | Actor | 1988 | 1 | |
| Kraft, Karin | Karin Kraft | Actor | 1991 | 1 | |
| Krug, Ines | Ines Krug | Actor | 1991 - 2006 | 7 | |
| Kylin, Ann-Sofie | Ann-Sofie Kylin | Actor | 1990 | 1 | |
| Kilian, Ute | Ute Kilian | Actor | 1990 | 1 | |
| King, Raymond | Raymond King | Actor | 1990 | 1 | |
| Kirstel, Richard | Richard Kirstel | Actor | 1990 | 1 | |
| Karliczek, Karl | Karl Karliczek | Actor | 1990 | 1 | |
| Kühn, Isolde | Isolde Kühn | Actor | 1990 | 1 | |
| Kratochwil, Franz | Franz Kratochwil | Actor | 1990 | 1 | |
| Kaiser, Dieter | Dieter Kaiser | Actor | 1990 | 1 | |
| Kern, Georges | Georges Kern | Actor | 1988 | 7 | |
| Kelly, Joe | Joe Kelly | Actor | 1991 | 1 | |
| Kvietik, Štefan | Štefan Kvietik | Actor | 1972 - 1990 | 2 | |
| Kurihara, Komaki | Komaki Kurihara | Actor | 1990 | 1 | |
| Kimura, Mifue | Mifue Kimura | Actor | 1990 | 1 | |
| Kátay, Endre | Endre Kátay | Actor | 1991 | 1 | |
| Kocsó, Gábor | Gábor Kocsó | Actor | 1991 - 1994 | 6 | |
| Kriener, Martin | Martin Kriener | Actor | 1990 | 6 | |
| Klie, Matthias | Matthias Klie | Actor | 1990 | 1 | |
| Kuiper, Marcella | Marcella Kuiper | Actor | 1991 | 1 | |
| Kevin, Michael | Michael Kevin | Actor | 1990 | 2 | |
| Kempen, Rhea, van | Rhea van Kempen | Actor | 1991 | 1 | |
| Koelemeijer, Judith | Judith Koelemeijer | Actor | 1991 | 1 | |
| Kremer, Dan | Dan Kremer | Actor | 1990 - 2002 | 2 | |
| Klánová, Eva | Eva Klánová | Actor | 1991 | 2 | |
| Kjeld, Kristbjörg | Kristbjörg Kjeld | Actor | 1962 - 2011 | 4 | 1 |
| Krüger, Christiana | Christiana Krüger | Actor | 1989 - 1992 | 3 | |
| Kniesbeck, Matthias | Matthias Kniesbeck | Actor | 1991 | 1 | |
| Kennedy, Jo | Jo Kennedy | Actor | 1990 | 1 | |
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