| Klaus, Rosa | Rosa Klaus | Actor | 1902 | 1 | |
| Kuchle, Albert | Albert Kuchle | Actor | 1902 | 2 | |
| Kvapil, Jaroslav | Jaroslav Kvapil | Adaptation, Director, Translator | 1901 - 2000 | 59 | 1 |
| Krones, Felix | Felix Krones | Actor | 1901 - 1928 | 4 | |
| Kwiatkiewiczowa, Eugenia | Eugenia Kwiatkiewiczowa | Actor | 1901 - 1914 | 5 | |
| Kögl, Cornelia | Cornelia Kögl | Actor | 1901 - 1908 | 3 | |
| Klintberg, - | - Klintberg | Actor | 1901 - 1903 | 4 | |
| Keffel, Laura | Laura Keffel | Actor | 1901 - 1902 | 14 | 1 |
| Kierschner, Marie | Marie Kierschner | Actor | 1901 | 1 | |
| Krohn, Frida | Frida Krohn | Actor | 1901 | 1 | 1 |
| Kupfer, Grete | Grete Kupfer | Actor | 1901 | 5 | |
| Krüger, Melanie | Melanie Krüger | Actor | 1901 | 1 | |
| Krusev, P. | P. Krusev | Designer | 1901 | 1 | |
| Klafstad, Ingebjørg | Ingebjørg Klafstad | Actor | 1901 | 1 | |
| Krähe, Julius | Julius Krähe | Actor | 1901 | 1 | |
| Kupfer, Eva | Eva Kupfer | Actor | 1901 | 2 | |
| Klopsch, Erich | Erich Klopsch | Actor | 1901 | 1 | |
| Klahr, Paul | Paul Klahr | Actor | 1901 | 1 | |
| Klott, Julius | Julius Klott | Actor | 1901 | 1 | |
| Karl, Fritz | Fritz Karl | Actor | 1901 | 1 | |
| Knirsch, Gusti | Gusti Knirsch | Actor | 1901 | 1 | |
| Kovic, Nana | Nana Kovic | Actor | 1901 | 1 | |
| Kahn, Florence | Florence Kahn | Actor | 1900 - 1936 | 8 | 1 |
| Kruger, Alma | Alma Kruger | Actor | 1900 - 1929 | 5 | 1 |
| Kirchner, Gustav | Gustav Kirchner | Actor, Director | 1900 - 1926 | 16 | |
| Körmendy, János | János Körmendy | Actor | 1900 - 1925 | 3 | |
| Kačalov, Vasilij | Vasilij Kačalov | Actor | 1900 - 1924 | 11 | 1 |
| Koševerova, M. | M. Koševerova | Actor | 1900 - 1924 | 5 | |
| Koreneva, L. | L. Koreneva | Actor | 1900 - 1924 | 5 | |
| Koonen, A. | A. Koonen | Actor | 1900 - 1924 | 5 | |
| Koševerov, Aleksandar | Aleksandar Koševerov | Actor, Director | 1900 - 1924 | 18 | |
| Kruszynski, Willy | Willy Kruszynski | Actor, Director | 1900 - 1921 | 4 | |
| Knipper-Chekhova, Olga Leonardovna | Olga Leonardovna Knipper-Chekhova | Actor | 1900 - 1918 | 6 | 1 |
| Kazouri, Ourania | Ourania Kazouri | Actor | 1900 - 1904 | 4 | |
| Kallweit, Maria | Maria Kallweit | Actor | 1900 - 1902 | 15 | |
| Krüger-Rosée, Lina | Lina Krüger-Rosée | Actor | 1900 - 1902 | 3 | |
| Kiefer, Heinrich | Heinrich Kiefer | Actor | 1900 - 1901 | 2 | |
| König, Frk. | Frk. König | Actor | 1900 | 1 | |
| König, Carl | Carl König | Actor | 1900 | 1 | |
| Kochan, Stanisław | Stanisław Kochan | Actor | 1900 | 1 | |
| Koefod, Thorvald | Thorvald Koefod | Director | 1900 | 1 | 1 |
| Knoblauch, Edward | Edward Knoblauch | Actor | 1900 | 1 | |
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