| Kerkow, Mascha, | Mascha Kerkow | Actor | 1907 | 1 | |
| Kövner, Lothar, | Lothar Kövner | Actor | 1907 | 1 | |
| Kurz, Emilie, | Emilie Kurz | Actor | 1907 | 3 | |
| Kempner, Traute, | Traute Kempner | Actor | 1907 | 1 | |
| Kupfer, Else, | Else Kupfer | Actor | 1907 | 1 | |
| Klodnitzky, Octav, | Octav Klodnitzky | Actor | 1907 | 1 | |
| Kručiņins, -, | - Kručiņins | Actor | 1907 | 1 | |
| Koškins, Kristaps, | Kristaps Koškins | Actor, Director | 1907 | 10 | |
| Klintscharov, Ivan G., | Ivan G. Klintscharov (Ivan G. Klintscharov) | Translator | 1907 | 1 | |
| Köllner, Paul, | Paul Köllner | Actor | 1907 | 1 | |
| Kourtelis, (?), | (?) Kourtelis | Actor | 1907 | 3 | |
| Kent, Edgar, | Edgar Kent | Actor | 1907 | 1 | |
| Kossegg, Therese | Therese Kossegg | Actor | 1907 | 4 | |
| Koller, Seline | Seline Koller | Actor | 1907 | 2 | |
| Kvartalova, N. | N. Kvartalova | Actor | 1907 | 3 | |
| Kruckenberg, Ivan, | Ivan Kruckenberg | Actor | 1907 - 1908 | 2 | |
| Konrad, Anna | Anna Konrad | Actor | 1907 - 1908 | 1 | |
| Könyves, Jenő | Jenő Könyves | Actor | 1907 - 1910 | 18 | |
| Kenmore, Octavia, | Octavia Kenmore | Actor | 1907 - 1914 | 122 | |
| Knina, Gustav, | Gustav Knina | Designer | 1907 - 1918 | 7 | |
| Kießling, Käthe, | Käthe Kießling | Actor | 1907 - 1919 | 14 | |
| Koht, Thorvald, | Thorvald Koht | Actor, Director | 1907 - 1930 | 10 | |
| Kiroff, S, | S Kiroff | Actor | 1908 | 1 | |
| Körner, Eduard, | Eduard Körner | Actor | 1908 | 1 | |
| Körner, -, | - Körner | Actor | 1908 | 1 | |
| Karlshofer, Mr., | Mr. Karlshofer | Actor | 1908 | 1 | |
| König, Toni, | Toni König | Actor | 1908 | 1 | |
| Kolmar, Wilhelm, | Wilhelm Kolmar | Actor | 1908 | 6 | |
| Kaucká, Juliana, | Juliana Kaucká | Actor | 1908 | 1 | |
| Kal´manson, M., | M. Kal´manson | Designer | 1908 | 1 | |
| Kachalov, Vasily, | Vasily Kachalov | Actor | 1908 | 1 | |
| Kaupiņa, Anna, | Anna Kaupiņa | Actor | 1908 | 2 | |
| Krysińska, Faustyna, | Faustyna Krysińska | Actor | 1908 | 1 | |
| Keefe, Belle, | Belle Keefe | Actor | 1908 | 1 | |
| Kelemen, Mária, | Mária Kelemen | Actor | 1908 | 2 | |
| Kasparová, Klára, | Klára Kasparová | Actor | 1908 | 1 | |
| Kennicott, Grace, | Grace Kennicott | Actor | 1908 | 1 | |
| Kurt, Rudolf | Rudolf Kurt | Actor | 1908 | 2 | |
| Krauß, Wilhelm | Wilhelm Krauß | Actor | 1908 | 2 | |
| Krisch, Geza | Geza Krisch | Actor | 1908 | 2 | |
| Kárpáthy, Sándor | Sándor Kárpáthy | Actor | 1908 | 1 | |
| Kennedy, Claire | Claire Kennedy | Actor | 1908 | 1 | |
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