| Korczak-Wesołowski, Zygmunt | Zygmunt Korczak-Wesołowski (Zygmunt Korczak-Wesołowski) | Actor | 1904 - 1905 | 2 | |
| Karasińska, Janina (?) | Janina (?) Karasińska (Janina (?) Karasińska) | Actor | 1904 | 1 | |
| Kendall, Frk. | Frk. Kendall (Frk. Kendall) | Actor | 1904 | 1 | |
| Kilpi, Eero | Eero Kilpi (Eero Kilpi) | Actor | 1904 - 1943 | 8 | |
| Kirtschev, Atanas | Atanas Kirtschev (Atanas Kirtschev) | Actor | 1904 - 1909 | 8 | |
| Krajewska, Leonia | Leonia Krajewska (Leonia Krajewska) | Actor | 1904 | 1 | |
| Kirkov, Geno | Geno Kirkov (Geno Kirkov) | Actor | 1905 | 1 | |
| Kolthoff, Signe | Signe Kolthoff (Signe Kolthoff) | Actor | 1905 | 2 | |
| Knox, R. F. | R. F. Knox (R. F. Knox) | Actor | 1905 | 1 | |
| Kliment, Václav | Václav Kliment (Václav Kliment) | Actor | 1905 | 1 | |
| Kubátová, Marie | Marie Kubátová (Marie Kubátová) | Actor | 1905 | 1 | |
| Kindl, Karel | Karel Kindl (Karel Kindl) | Actor | 1905 | 1 | |
| Keith, Carrie | Carrie Keith (Carrie Keith) | Actor | 1905 | 1 | |
| Kettle, Jessie | Jessie Kettle (Jessie Kettle) | Actor | 1905 | 1 | |
| Kettle, Hilda | Hilda Kettle (Hilda Kettle) | Actor | 1905 | 1 | |
| Kriajeva, V. | V. Kriajeva (V. Kriajeva) | Actor | 1906 | 3 | |
| Karataeff, A. | A. Karataeff (A. Karataeff) | Actor | 1906 | 3 | 1 |
| Korecki, Henryk Cudnowski | Henryk Cudnowski Korecki | Actor | 1906 | 1 | |
| Kotopoulis, Dimitrios | Dimitrios Kotopoulis (Dimitrios Kotopoulis) | Actor | 1906 | 1 | |
| Kotopouli, Marika | Marika Kotopouli (Marika Kotopouli) | Actor | 1906 - 1945 | 5 | |
| Kotopouli-Loui, Foteini | Foteini Kotopouli-Loui (Foteini Kotopouli-Loui) | Actor | 1906 - 1907 | 2 | |
| Kotopouli-Myrat, Chrysoula | Chrysoula Kotopouli-Myrat (Chrysoula Kotopouli-Myrat) | Actor | 1906 - 1921 | 3 | |
| Kouris, Nikolaos | Nikolaos Kouris (Nikolaos Kouris) | Actor | 1906 | 2 | |
| Kirchner, Franz | Franz Kirchner (Franz Kirchner) | Actor | 1906 - 1907 | 5 | |
| Kingdon, Frank | Frank Kingdon (Frank Kingdon) | Actor | 1906 - 1907 | 9 | |
| Klaer, Adele | Adele Klaer (Adele Klaer) | Actor | 1906 - 1907 | 3 | |
| Korčagina, E. P. | E. P. Korčagina (E. P. Korčagina) | Actor | 1903 - 1906 | 2 | |
| Karpáti, Sándor | Sándor Karpáti (Sándor Karpáti) | Actor | 1906 - 1908 | 5 | |
| Kručiņins, - | - Kručiņins (- Kručiņins) | Actor | 1907 | 1 | |
| Köllner, Paul | Paul Köllner (Paul Köllner) | Actor | 1907 | 1 | |
| Kourtelis, (?) | (?) Kourtelis ((?) Kourtelis) | Actor | 1907 | 3 | |
| Kruckenberg, Ivan | Ivan Kruckenberg (Ivan Kruckenberg) | Actor | 1907 - 1908 | 2 | |
| Kent, Edgar | Edgar Kent (Edgar Kent) | Actor | 1907 | 1 | 1 |
| Kaucká, Juliana | Juliana Kaucká (Juliana Kaucká) | Actor | 1908 | 1 | |
| Kachalov, Vasily | Vasily Kachalov (Vasily Kachalov) | Actor | 1908 | 1 | |
| Kaupiņa, Anna | Anna Kaupiņa (Anna Kaupiņa) | Actor | 1908 - 1909 | 2 | |
| Krysińska, Faustyna | Faustyna Krysińska (Faustyna Krysińska) | Actor | 1908 | 1 | |
| Keefe, Belle | Belle Keefe (Belle Keefe) | Actor | 1908 | 1 | |
| Kelemen, Mária | Mária Kelemen (Mária Kelemen) | Actor | 1908 - 1931 | 2 | |
| Kürti, József | József Kürti (József Kürti) | Actor | 1908 - 1939 | 4 | |
| Kuncewicz, Witold | Witold Kuncewicz (Witold Kuncewicz) | Actor | 1908 - 1917 | 3 | |
| Kamińska, Jadwiga | Jadwiga Kamińska (Jadwiga Kamińska) | Actor | 1908 - 1910 | 2 | |
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