| Kamiyama, Sojin | Sojin Kamiyama (Sojin Kamiyama) | Actor, Director | 1912 - 1914 | 3 | |
| Karczewski, Zdzisław | Zdzisław Karczewski (Zdzisław Karczewski) | Actor, Director | 1954 | 2 | |
| Kaschke, Ludwig | Ludwig Kaschke (Ludwig Kaschke) | Actor, Director | 1987 - 2004 | 14 | |
| Keppler, Heinrich | Heinrich Keppler (Heinrich Keppler) | Actor, Director | 1880 - 1893 | 16 | 1 |
| Knoop, Gerhard | Gerhard Knoop (Gerhard Knoop) | Actor, Director | 1951 - 1991 | 129 | |
| Kormákur, Baltasar | Baltasar Kormákur (Baltasar Kormákur) | Actor, Director | 1991 - 2008 | 8 | |
| Körner, Hermine | Hermine Körner (Hermine Körner) | Actor, Director | 1902 - 1953 | 39 | |
| Kotarbiński, Józef | Józef Kotarbiński (Józef Kotarbiński) | Actor, Director | 1882 - 1908 | 9 | |
| Koch, Birgitte Halling | Birgitte Halling Koch (Birgitte Halling Koch) | Actor, Director | 1985 - 1992 | 2 | |
| Kovács, Nóra | Nóra Kovács (Nóra Kovács) | Actor, Director | 2005 - 2016 | 2 | |
| Kolár, Frantisek | Frantisek Kolár (Frantisek Kolár) | Actor, Director | 1878 - 1891 | 6 | |
| Kindelan, Nancy | Nancy Kindelan (Nancy Kindelan) | Actor, Director | 1968 - 2001 | 3 | |
| Kaser, Ludwig | Ludwig Kaser (Ludwig Kaser) | Actor, Director | 1878 - 1914 | 26 | |
| Krause, Karl | Karl Krause (Karl Krause) | Actor, Director | 1894 - 1911 | 24 | |
| Klausen, Sigurd Aae | Sigurd Aae Klausen (Sigurd Aae Klausen) | Actor, Director | 1994 - 2011 | 7 | |
| Kruszynski, Willy | Willy Kruszynski (Willy Kruszynski) | Actor, Director | 1900 - 1921 | 4 | |
| Kappner, Max | Max Kappner (Max Kappner) | Actor, Director | 1889 | 6 | |
| Korecki, Kazimierz | Kazimierz Korecki (Kazimierz Korecki) | Actor, Director | 1891 - 1928 | 5 | |
| Kosiński, Włodzimierz | Włodzimierz Kosiński (Włodzimierz Kosiński) | Actor, Director | 1891 - 1922 | 12 | |
| Kienscherf, Otto Johannes | Otto Johannes Kienscherf (Otto Johannes Kienscherf) | Actor, Director | 1895 - 1925 | 27 | |
| Klintberg, Gunnar | Gunnar Klintberg (Gunnar Klintberg) | Actor, Director | 1897 - 1919 | 14 | |
| Kirkov, Vassil | Vassil Kirkov (Vassil Kirkov) | Actor, Director | 1898 - 1905 | 5 | |
| Kurth, Adolf | Adolf Kurth (Adolf Kurth) | Actor, Director | 1890 - 1915 | 20 | |
| Keller, Eugen | Eugen Keller (Eugen Keller) | Actor, Director | 1913 - 1922 | 22 | |
| Kauer, Franz | Franz Kauer (Franz Kauer) | Actor, Director | 1908 - 1915 | 13 | |
| Kurth, Ferdinand | Ferdinand Kurth (Ferdinand Kurth) | Actor, Director | 1909 | 3 | |
| Kirchner, Gustav | Gustav Kirchner (Gustav Kirchner) | Actor, Director | 1900 - 1926 | 16 | |
| Kalbeck, Paul | Paul Kalbeck (Paul Kalbeck) | Actor, Director | 1913 - 1946 | 2 | |
| Kiesau, Georg | Georg Kiesau (Georg Kiesau) | Actor, Director | 1914 - 1938 | 7 | 1 |
| Krauß, Ingo | Ingo Krauß (Ingo Krauß) | Actor, Director | 1906 - 1922 | 7 | |
| Koehler, Albert | Albert Koehler (Albert Koehler) | Actor, Director | 1916 | 2 | |
| Kolkwitz, Paul | Paul Kolkwitz (Paul Kolkwitz) | Actor, Director | 1919 - 1934 | 3 | |
| Kranz, Fritz | Fritz Kranz (Fritz Kranz) | Actor, Director | 1921 - 1941 | 4 | |
| Küpper, Hannes | Hannes Küpper (Hannes Küpper) | Actor, Director | 1923 - 1938 | 4 | |
| König, Hanns | Hanns König (Hanns König) | Actor, Director | 1923 - 1946 | 15 | |
| Klafft, Hugo | Hugo Klafft (Hugo Klafft) | Actor, Director | 1925 - 1931 | 4 | |
| Krumschmidt, Eberhard | Eberhard Krumschmidt (Eberhard Krumschmidt) | Actor, Director | 1931 | 2 | |
| Kraut, Werner Maria | Werner Maria Kraut (Werner Maria Kraut) | Actor, Director | 1931 - 1950 | 5 | |
| Körbs, Herbert | Herbert Körbs (Herbert Körbs) | Actor, Director | 1936 - 1938 | 2 | |
| Klubertanz, Carl Heinz | Carl Heinz Klubertanz (Carl Heinz Klubertanz) | Actor, Director | 1937 - 1938 | 8 | |
| Kurth, Otto | Otto Kurth (Otto Kurth) | Actor, Director | 1938 - 1979 | 4 | |
| Koševerov, Aleksandar Sergejevič | Aleksandar Sergejevič Koševerov (Aleksandar Sergejevič Koševerov) | Actor, Director | 1900 - 1924 | 13 | |
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