| Kulke, Konrad | Konrad Kulke (Konrad Kulke) | Costume Designer, Designer | 1964 - 2005 | 6 | |
| Kunze, Ulrich | Ulrich Kunze (Ulrich Kunze) | Actor | 1986 - 2012 | 6 | |
| Kupfer, Bettina | Bettina Kupfer (Bettina Kupfer) | Actor | 1990 - 1992 | 6 | |
| Kjellgren, Johan | Johan Kjellgren (Johan Kjellgren) | Actor | 1995 - 2007 | 6 | |
| Kodama, Taiji | Taiji Kodama (Taiji Kodama) | Actor | 1978 - 2003 | 6 | |
| Kretzer, Fred | Fred Kretzer (Fred Kretzer) | Actor | 1970 - 1990 | 6 | |
| Krauß, Thomas | Thomas Krauß (Thomas Krauß) | Director, Translator | 2000 - 2007 | 6 | |
| Kolár, Frantisek | Frantisek Kolár (Frantisek Kolár) | Actor, Director | 1878 - 1891 | 6 | |
| Kramer, Josef | Josef Kramer (Josef Kramer) | Actor | 1919 - 1924 | 6 | |
| Kamtsis, Nikos | Nikos Kamtsis (Nikos Kamtsis) | Actor, Designer, Director, Lighting Designer, Translator | 2010 - 2019 | 6 | 1 |
| Kappner, Max | Max Kappner (Max Kappner) | Actor, Director | 1889 | 6 | |
| Kaiser, Alian Viktoria | Alian Viktoria Kaiser (Alian Viktoria Kaiser) | Actor | 2010 | 6 | |
| Kielemoniuk, Emil | Emil Kielemoniuk (Emil Kielemoniuk) | Actor | 2010 | 6 | |
| Krohn, Georg | Georg Krohn (Georg Krohn) | Actor | 1864 - 1869 | 6 | 1 |
| Krohn, Mr. | Mr. Krohn (Mr. Krohn) | Actor | 1871 | 6 | |
| Kinmansson, Anna | Anna Kinmansson (Anna Kinmansson) | Actor | 1874 - 1886 | 6 | |
| Knispel, Hermann | Hermann Knispel (Hermann Knispel) | Actor | 1886 - 1916 | 6 | |
| Kamiński, Kazimierz | Kazimierz Kamiński (Kazimierz Kamiński) | Actor | 1894 - 1904 | 6 | |
| Kindstrand, Helga | Helga Kindstrand (Helga Kindstrand) | Actor | 1895 | 6 | |
| Kainz, Josef | Josef Kainz (Josef Kainz) | Actor | 1903 - 1910 | 6 | 2 |
| Kammauf, Franz | Franz Kammauf (Franz Kammauf) | Actor | 1891 - 1920 | 6 | |
| Kolmar, Wilhelm | Wilhelm Kolmar (Wilhelm Kolmar) | Actor | 1908 - 1910 | 6 | |
| Knab, Richard | Richard Knab (Richard Knab) | Actor | 1913 - 1915 | 6 | |
| Krüger, Wilhelm | Wilhelm Krüger (Wilhelm Krüger) | Actor | 1911 - 1955 | 6 | |
| Kernic, Anka | Anka Kernic (Anka Kernic) | Actor | 1909 - 1918 | 6 | |
| Kraus, Hans Adalbert | Hans-Adalbert Kraus (Hans Adalbert Kraus) | Actor | 1932 - 1961 | 6 | |
| Köstlin, Karl | Karl Köstlin (Karl Köstlin) | Actor | 1911 - 1928 | 6 | |
| Klein, Cesar | Cesar Klein (Cesar Klein) | Costume Designer, Designer | 1921 - 1940 | 6 | |
| Korth, Walter | Walter Korth (Walter Korth) | Actor | 1909 - 1931 | 6 | |
| Kertes, Susanne | Susanne Kertes (Susanne Kertes) | Actor | 1936 - 1945 | 6 | |
| Knipper-Chekhova, Olga | Olga Knipper-Chekhova (Olga Knipper-Chekhova) | Actor | 1900 - 1918 | 6 | |
| Kalogerikou, Christina | Christina Kalogerikou (Christina Kalogerikou) | Actor | 1902 - 1943 | 6 | |
| Kronbergs, Augusts | Augusts Kronbergs (Augusts Kronbergs) | Actor | 1910 - 1921 | 6 | |
| Kelly, Miriam | Miriam Kelly (Miriam Kelly) | Actor | 1994 | 6 | 1 |
| Knutsen, Arne | Arne Knutsen (Arne Knutsen) | Actor | 1978 - 2006 | 6 | |
| Kringstad, Guri | Guri Kringstad (Guri Kringstad) | Actor | 1995 - 1997 | 6 | |
| Kringstad, Arne | Arne Kringstad (Arne Kringstad) | Actor | 1996 - 1999 | 6 | |
| Kristiansen, Kari | Kari Kristiansen (Kari Kristiansen) | Actor | 1997 - 1999 | 6 | |
| Kolbræk, Marit | Marit Kolbræk (Marit Kolbræk) | Actor | 1971 - 2006 | 6 | |
| Kristiansen, June | June Kristiansen (June Kristiansen) | Actor, Director | 2009 - 2010 | 6 | |
| Kratinová, Hermína | Hermína Kratinová (Hermína Kratinová) | Actor | 1921 - 1928 | 6 | |
| Kasten, Thomas | Thomas Kasten | Actor | 1973 - 2014 | 6 | |
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