| Kolb, Yvette | Yvette Kolb | Actor | 1977 | 1 | |
| Kolbinger, Hannelore | Hannelore Kolbinger | Actor | 1973 | 1 | |
| Kleinman, Selma | Selma Kleinman | Actor | 2003 | 1 | |
| Keller, Eva Maria | Eva Maria Keller | Actor | 2003 - 2013 | 9 | 2 |
| Kim, Daniel Dae | Daniel Dae Kim | Actor | 1993 | 1 | |
| Kochan, Felix | Felix Kochan | Actor | 1987 | 1 | |
| Kotz, J. | J. Kotz | Actor | 1885 | 1 | |
| Kotz, E. | E. Kotz | Actor | 1885 | 1 | |
| Kelly, Glenna Jo | Glenna Jo Kelly | Actor | 1974 | 1 | |
| Kummer, Roman | Roman Kummer | Actor | 1997 | 1 | |
| Kuhl, Manja | Manja Kuhl | Actor | 2010 - 2012 | 14 | 3 |
| Kritzeck, Hannah | Hannah Kritzeck | Actor | 2003 - 2011 | 35 | 1 |
| Knight, Margot | Margot Knight | Actor | 1980 | 1 | |
| Kowitz, Peter | Peter Kowitz | Actor | 1986 - 1999 | 3 | 1 |
| Kuhn, - | - Kuhn | Actor | 1918 | 2 | |
| Krüger, Charlotte | Charlotte Krüger | Actor | 1919 - 1943 | 3 | |
| Kara, Tunde | Tünde Kara (Tunde Kara) | Actor | 2005 - 2010 | 2 | 1 |
| Katkó, Ferenc | Ferenc Katkó | Actor | 2010 | 1 | 1 |
| Krauß, Mrs. | Mrs. Krauß | Actor | 1898 - 1902 | 5 | |
| Komínek, Petr | Petr Komínek | Actor | 2011 | 1 | |
| Kalužíková, Markéta | Markéta Kalužíková (Markéta žíková) | Actor | 2011 | 1 | |
| Kroneisl, Jan | Jan Kroneisl | Actor | 2011 | 1 | |
| Kaštická, Olga | Olga Kaštická | Actor | 2011 | 1 | |
| Kießling, Käthe | Käthe Kießling | Actor | 1907 - 1919 | 14 | |
| Knapp, Jesper | Jesper Knapp | Actor | 2004 - 2006 | 27 | |
| Kärkinen, Kaija | Kaija Kärkinen | Actor | 1992 - 1994 | 2 | |
| Kilinger, Mimi | Mimi Kilinger | Actor | 1971 | 1 | |
| Krejcir, Elisabeth | Elisabeth Krejcir | Actor | 1971 - 1985 | 3 | |
| Kreimer, Artem | Artem Kreimer | Actor | 2011 | 1 | |
| Kley, Wilhelmina | Wilhelmina Kley | Actor | 1917 - 1925 | 2 | |
| Klára, Tompa | Tompa Klára | Actor | 1905 - 2010 | 7 | 8 |
| Kaalstad, Nils Jørgen | Nils Jørgen Kaalstad | Actor | 1992 - 2024 | 7 | |
| Kruger, Ben | Ben Kruger | Actor | 1985 | 1 | |
| Kilavuz, Aram | Aram Kilavuz | Actor | 2010 | 8 | |
| Kassabi, Nathan | Nathan Kassabi | Actor | 2010 - 2011 | 2 | |
| Kordeck, Hans | Hans Kordeck | Actor | 2002 | 1 | |
| Koch, Cedric Joel | Cedric Joel Koch | Actor | 2011 - 2012 | 2 | |
| Kingsley, Barbara J. | Barbara J. Kingsley | Actor | 1975 | 1 | |
| Kostolitz, Stefan | Stefan Kostolitz | Actor | 2010 | 1 | 1 |
| Kidd, Steve | Steve Kidd | Actor | 2004 - 2021 | 4 | 1 |
| Kane, Jeanine | Jeanine Kane | Actor | 2004 - 2021 | 4 | |
| Kane, Brigid | Brigid Kane | Actor | 2011 | 1 | |
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