| Karsten, Paul | Paul Karsten (Paul Karsten) | Actor | 1918 | 1 | |
| Katsura, Hisako | Hisako Katsura (Hisako Katsura) | Actor | 1918 | 1 | |
| Khmara, Grigory | Grigory Khmara (Grigory Khmara) | Actor | 1918 | 1 | |
| Kean, Frances | Frances Kean (Frances Kean) | Actor | 1918 | 1 | |
| Kirksæther, Aase | Aase Kirksæther (Aase Kirksæther) | Actor | 1919 | 1 | |
| Konstantinidou, Tz. | Tz. Konstantinidou (Tz. Konstantinidou) | Actor | 1919 | 1 | |
| Kanellopoulou, Xaveria | Xaveria Kanellopoulou (Xaveria Kanellopoulou) | Actor | 1919 | 1 | |
| Kralj, Emil | Emil Kralj (Emil Kralj) | Actor, Director | 1919 - 1929 | 4 | |
| Kabók, Győző | Győző Kabók (Győző Kabók) | Actor | 1920 | 1 | |
| Klaniczay, Gyula | Gyula Klaniczay (Gyula Klaniczay) | Actor | 1920 | 1 | |
| Kåge, Ivar | Ivar Kåge (Ivar Kåge) | Actor | 1920 - 1927 | 3 | |
| Kvaran, Ragnar E. | Ragnar E. Kvaran (Ragnar E. Kvaran) | Actor | 1920 | 1 | |
| Kamburova, Dobrinka | Dobrinka Kamburova (Dobrinka Kamburova) | Actor | 1912 - 1921 | 3 | |
| Knudsen, Kaare | Kaare Knudsen (Kaare Knudsen) | Actor | 1921 - 1942 | 3 | |
| Komisarjevsky, Theodore | Theodore Komisarjevsky (Theodore Komisarjevsky) | Director, Producer | 1921 - 1924 | 4 | |
| Krausová-Lesná, Milada | Milada Krausová-Lesná (Milada Krausová-Lesná) | Translator | 1922 - 1937 | 4 | |
| Kratinová, Hermína | Hermína Kratinová (Hermína Kratinová) | Actor | 1921 - 1928 | 6 | |
| Kelly, Katherine Wick | Katherine Wick Kelly (Katherine Wick Kelly) | Actor | 1922 - 1930 | 2 | |
| Keith-Johnston, Colin | Colin Keith-Johnston (Colin Keith-Johnston) | Actor | 1922 - 1939 | 2 | |
| Keranov, Dimitar | Dimitar Keranov (Dimitar Keranov) | Actor | 1923 | 1 | |
| Kantor, Alexandr | Alexandr Kantor (Alexandr Kantor) | Director | 1923 | 1 | |
| Krauklis, Nikolajs | Nikolajs Krauklis (Nikolajs Krauklis) | Actor | 1923 - 1939 | 2 | |
| Klitsch, Wilhelm | Wilhelm Klitsch (Wilhelm Klitsch) | Actor | 1923 | 1 | |
| Keller, Hedwig | Hedwig Keller (Hedwig Keller) | Actor | 1923 | 1 | |
| Klausen, Gudrun | Gudrun Klausen (Gudrun Klausen) | Choreographer | 1923 | 1 | |
| Knudssøn, Dagen | Dagen Knudssøn (Dagen Knudssøn) | Actor | 1923 | 2 | |
| Kadlec, Rudolf | Rudolf Kadlec (Rudolf Kadlec) | Actor | 1923 | 1 | |
| Kooiman, Louise | Louise Kooiman (Louise Kooiman) | Actor | 1923 | 1 | |
| Kleyn, Kommer | Kommer Kleyn (Kommer Kleyn) | Actor | 1923 | 1 | |
| Kleyn, - | - Kleyn (- Kleyn) | Actor | 1923 | 1 | |
| Kodzhabascheva, Penka | Penka Kodzhabascheva (Penka Kodzhabascheva) | Actor | 1924 | 1 | |
| Krimer, Harry | Harry Krimer (Harry Krimer) | Actor | 1924 - 1926 | 2 | |
| Krontiras, Kostas | Kostas Krontiras (Kostas Krontiras) | Actor, Director | 1924 - 1938 | 19 | |
| Kramer, Vagn | Vagn Kramer (Vagn Kramer) | Actor | 1914 - 2003 | 7 | |
| Krogsrud, Sverre | Sverre Krogsrud (Sverre Krogsrud) | Actor | 1924 - 1961 | 8 | |
| Kļava, Jānis | Jānis Kļava (Jānis Kļava) | Actor, Director | 1924 | 2 | |
| Kálnay, Ilonka | Ilonka Kálnay (Ilonka Kálnay) | Actor | 1924 | 1 | |
| Kvaran, Ágúst | Ágúst Kvaran (Ágúst Kvaran) | Actor | 1924 | 1 | |
| Knudsen, Colbjörn | Colbjörn Knudsen | Actor | 1925 - 1936 | 2 | |
| Kristan, Etbin | Etbin Kristan | Translator | 1925 | 1 | |
| Kádár, Margit | Margit Kádár | Actor | 1925 | 1 | |
| Keith, Caroline | Caroline Keith | Actor | 1926 | 1 | |
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