| Lahdensuo, Jalmari | Jalmari Lahdensuo | Director | 1916 | 1 | 1 |
| Lefèbre, Else | Else Lefèbre | Actor | 1916 | 1 | |
| Lee, Jennie | Jennie Lee | Actor | 1916 | 1 | |
| Lohse, Otto | Otto Lohse | Conductor, Musical Director | 1916 - 1918 | 2 | |
| Lindikoff, Ludwig | Ludwig Lindikoff | Actor, Director | 1916 - 1925 | 11 | |
| Lange, Raul | Raul Lange | Actor | 1916 - 1928 | 3 | |
| Liebl, Max | Max Liebl | Actor, Adaptation, Director | 1916 - 1934 | 7 | |
| Larsen, Leif | Leif Larsen | Actor | 1916 - 1939 | 23 | |
| Laseur, Cees | Cees Laseur | Actor, Director, Producer | 1916 - 1955 | 4 | |
| Lindby, Hedvig | Hedvig Lindby | Actor | 1917 | 1 | |
| Lewis, Ethel | Ethel Lewis | Actor | 1917 | 1 | |
| Lassow, Thea | Thea Lassow | Actor | 1917 | 1 | |
| Lucas, Curt | Curt Lucas | Actor | 1917 | 1 | |
| Lang, Friedl | Friedl Lang | Actor | 1917 | 2 | |
| Leonardi, Anna | Anna Leonardi | Actor | 1917 | 1 | |
| Leśniewski, Józef | Józef Leśniewski | Actor | 1917 | 8 | |
| Lortzing, Albert | Albert Lortzing | Composer | 1917 | 1 | |
| Le Feuvre, Guy | Guy Le Feuvre | Composer | 1917 | 1 | |
| LeClerq, Florence | Florence LeClerq | Actor | 1917 | 1 | |
| Lothar, Franzi | Franzi Lothar | Actor | 1917 | 1 | |
| Lyanka, Zlata | Zlata Lyanka | Actor | 1917 | 1 | |
| Linden, Einar | Einar Linden | Actor | 1917 | 1 | |
| Lantz, Herman | Herman Lantz | Actor | 1917 | 1 | |
| Lobo-Braakensiek, Greta | Greta Lobo-Braakensiek | Actor | 1917 - 1918 | 2 | |
| Löwe, Annemarie | Annemarie Löwe | Actor | 1917 - 1918 | 2 | |
| Lem, Per | Per Lem | Actor | 1917 - 1924 | 11 | |
| Lütjens, Marie | Marie Lütjens | Actor | 1917 - 1928 | 4 | |
| Liedtke, Walter | Walter Liedtke | Actor | 1917 - 1937 | 6 | |
| Lie, Ella | Ella Lie | Actor | 1917 - 1962 | 19 | 1 |
| Larssen, Tryggve | Tryggve Larssen | Actor, Mask Maker | 1917 - 2006 | 64 | 1 |
| Leidmann, Eva | Eva Leidmann | Actor | 1918 | 1 | |
| Lehmann, Hedwig | Hedwig Lehmann | Actor | 1918 | 1 | |
| Lemke, Rudolf | Rudolf Lemke | Actor | 1918 | 1 | |
| Lüdecke, Elise | Elise Lüdecke | Actor | 1918 | 1 | |
| Leon, Eva | Eva Leon | Actor | 1918 | 1 | |
| Lazarev, I. | I. Lazarev | Actor | 1918 | 1 | |
| Litvin, Ray | Ray Litvin | Actor | 1918 | 1 | |
| Lamison, Norah | Norah Lamison | Actor | 1918 | 1 | |
| Leon, Sydney | Sydney Leon | Actor | 1918 | 1 | |
| Lippits, Otto | Otto Lippits | Conductor | 1918 | 1 | |
| L'Arronge, Richard | Richard L'Arronge | Musical Director | 1918 | 1 | |
| Lassen, Konrad | Konrad Lassen | Actor | 1918 - 1919 | 4 | |
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