| Kiesau, Georg | Georg Kiesau | Actor, Director | 1914 - 1938 | 7 | 1 |
| Klöpfer, Eugen | Eugen Klöpfer | Actor | 1914 - 1937 | 11 | 1 |
| Krause, Charlotte | Charlotte Krause | Actor | 1914 - 1928 | 5 | 1 |
| Körner, Alice | Alice Körner | Actor | 1914 - 1917 | 4 | |
| Kozina, A | A Kozina | Actor | 1914 | 1 | |
| Kretisčenko, S. | S. Kretisčenko | Actor | 1914 | 1 | |
| Kessell, Nanny | Nanny Kessell | Actor | 1914 | 1 | |
| Kuhn, Marga | Marga Kuhn | Actor | 1914 | 1 | |
| Krause, Mila | Mila Krause | Actor | 1914 | 1 | |
| Koßwig, Curt | Curt Koßwig | Actor | 1914 | 2 | |
| Kawaji, Utako | Utako Kawaji | Actor | 1914 | 1 | |
| Kurahashi, Sentaro | Sentaro Kurahashi | Actor | 1914 | 1 | |
| Kambayashi, Matsuzo | Matsuzo Kambayashi | Actor | 1914 | 1 | |
| Kuga, J. | Jānis Kuga (J. Kuga) | Designer | 1914 | 2 | |
| Kondo, Kazuya | Kazuya Kondo | Actor | 1914 | 1 | |
| Kito, Shuzo | Shuzo Kito | Actor | 1914 | 1 | |
| Klaasen, Lina | Lina Klaasen | Actor | 1914 | 1 | |
| Koltai, Lajos | Lajos Koltai | Actor | 1914 | 1 | |
| Kreß, Ery | Ery Kreß | Actor | 1914 | 1 | |
| König, Johannes | Johannes König | Actor | 1914 | 1 | |
| Königsberger, Fritz | Fritz Königsberger | Actor | 1914 | 1 | |
| Konrad, Erna | Erna Konrad | Actor | 1914 | 1 | |
| Kunz, Chriemhild | Chriemhild Kunz | Actor | 1914 | 1 | |
| Kautsky, Hans | Hans Kautsky | Designer | 1914 | 1 | |
| Kronau, Siegfried | Siegfried Kronau | Actor | 1914 | 2 | |
| Krauß, Werner | Werner Krauß | Actor | 1913 - 1950 | 16 | 1 |
| Kalbeck, Paul | Paul Kalbeck | Actor, Director | 1913 - 1946 | 2 | |
| Koch, Georg August | Georg August Koch | Actor | 1913 - 1942 | 3 | |
| Karchow, Ernst Günther | Ernst Günther Karchow | Actor | 1913 - 1933 | 4 | |
| Kozłowska, Iza | Iza Kozłowska | Actor | 1913 - 1928 | 2 | 1 |
| Kopštāls, Žanis | Žanis Kopštāls | Actor | 1913 - 1924 | 5 | |
| Keller, Eugen | Eugen Keller | Actor, Director | 1913 - 1922 | 22 | |
| Keplere, Lidija | Lidija Keplere | Actor | 1913 - 1921 | 4 | |
| Kulisch, Walter | Walter Kulisch | Actor | 1913 - 1919 | 2 | |
| Kempin, Kurt | Kurt Kempin | Designer | 1913 - 1917 | 12 | |
| Karbaum, Melanie | Melanie Karbaum | Actor | 1913 - 1916 | 4 | |
| Kroczak, Emil | Emil Kroczak | Actor | 1913 - 1916 | 4 | |
| Knab, Richard | Richard Knab | Actor | 1913 - 1915 | 6 | |
| Kramer, Ernst | Ernst Kramer | Actor | 1913 - 1914 | 2 | |
| Kiefer, Frieda | Frieda Kiefer | Actor | 1913 - 1914 | 2 | |
| Koch, Maria | Maria Koch | Actor | 1913 - 1914 | 2 | |
| Koizumi, Shiei | Shiei Koizumi | Actor | 1913 | 1 | |
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