| Lewis, Sheldon | Sheldon Lewis | Actor | 1910 - 1911 | 4 | 1 |
| Luck, Emily | Emily Luck | Actor | 1910 - 1911 | 2 | |
| Lenhart, Leo | Leo Lenhart | Actor | 1910 - 1911 | 2 | |
| Lengyel, Irén | Irén Lengyel | Actor | 1910 - 1911 | 5 | |
| Liebig, Frl. | Frl. Liebig | Actor | 1910 | 1 | |
| Lohmeyer, Mr. | Mr. Lohmeyer | Actor | 1910 | 1 | |
| Laske, Norbert | Norbert Laske | Actor | 1910 | 1 | |
| Lichtenegg, Marie | Marie Lichtenegg | Actor | 1910 | 1 | |
| La Porte, Walter | Walter La Porte | Musical Director | 1910 | 1 | |
| Lang, Emil | Emil Lang | Actor | 1909 - 1956 | 2 | |
| Lion, Fritz | Fritz Lion | Actor | 1909 - 1934 | 3 | |
| Labadie, Harriet | Harriet Labadie | Actor, Adaptation | 1909 - 1914 | 30 | |
| Lahrius, - | - Lahrius | Actor | 1909 - 1913 | 2 | |
| Lauritzen, Lauritz | Lauritz Lauritzen | Actor | 1909 - 1911 | 2 | |
| Lauberts, Ērihs | Ērihs Lauberts | Actor, Director | 1909 - 1910 | 2 | |
| Lemke, Selina | Selina Lemke | Actor | 1909 | 1 | |
| Lüttjohann, Ferdinand | Ferdinand Lüttjohann | Actor | 1909 | 1 | |
| Langer, Freda | Freda Langer | Actor | 1909 | 1 | |
| Lund, Aage | Aage Lund | Actor | 1909 | 1 | |
| Lattin, J.D.B. | J. D. B. Lattin (J.D.B. Lattin) | Actor | 1909 | 2 | |
| Lane, J.C. | J. C. Lane (J.C. Lane) | Actor | 1909 | 2 | |
| Leland, Roca | Roca Leland | Actor | 1909 | 1 | |
| Lindau, Paul | Paul Lindau | Director | 1909 | 1 | 1 |
| Lindner, Emil | Emil Lindner | Actor | 1909 | 1 | |
| Laasner, Rosa | Rosa Laasner | Actor | 1909 | 2 | |
| Lindelöf, Helmi | Helmi Lindelöf | Actor | 1908 - 1943 | 6 | |
| Lassen, Karl Friedrich | Karl Friedrich Lassen | Actor | 1908 - 1928 | 3 | 1 |
| Lind, Samuel | Samuel Lind | Actor | 1908 - 1928 | 6 | 1 |
| Lochman, Stefan | Stefan Lochman | Actor | 1908 - 1924 | 3 | |
| Lobo, D.J. | D. J. Lobo (D.J. Lobo) | Actor | 1908 - 1918 | 4 | |
| Lorenz, Christel | Christel Lorenz | Actor | 1908 - 1913 | 6 | |
| Laßwitz, Hilde | Hilde Laßwitz | Actor | 1908 - 1911 | 2 | |
| Lavaggi, Armando | Armando Lavaggi | Actor | 1908 - 1909 | 9 | |
| Lyndal, Percy | Percy Lyndal | Actor | 1908 - 1909 | 5 | |
| Larsson, William | William Larsson | Actor | 1908 | 1 | |
| Liepa, Emma | Emma Liepa | Actor | 1908 | 1 | |
| Landsberg, Dr. Ludwig | Ludwig Landsberg (Dr. Ludwig Landsberg) | Actor | 1908 | 2 | |
| Lütgert, Magda | Magda Lütgert | Actor | 1908 | 1 | |
| Landmann, Albert | Albert Landmann | Actor | 1908 | 1 | |
| Landwer, Mr. | Mr. Landwer | Actor | 1908 | 1 | |
| Lutz, Georg | Georg Lutz | Actor | 1908 | 1 | |
| L'vovič, - | - L'vovič | Actor | 1908 | 1 | |
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