| Loreto, Massimo | Massimo Loreto | Actor | 1975 - 1993 | 3 | |
| Leveston, Glenis | Glenis Leveston | Actor | 1990 - 1991 | 5 | |
| Laucevičius, Liubomiras | Liubomiras Laucevičius | Actor | 1998 - 2000 | 4 | |
| Lydersen, Lillian | Lillian Lydersen | Actor | 1968 - 1988 | 25 | |
| Ljunggren, Margaret | Margaret Ljunggren | Actor | 1971 | 138 | |
| Ling, Lan | Lan Ling | Costume Designer, Mask Maker | 2006 - 2010 | 12 | |
| Lingzhi, Lu | Lu Lingzhi | Adaptation | 2006 - 2009 | 5 | |
| Lianos, Periklis | Periklis Lianos | Actor | 1990 - 1991 | 2 | |
| LLosa, Fernando | Fernando LLosa | Actor | 2009 - 2011 | 13 | |
| Langberg, Jesper | Jesper Langberg | Actor | 2006 | 2 | |
| Lambrecht, Guido | Guido Lambrecht | Actor | 1999 - 2021 | 4 | |
| Ljungberg, Jenny | Jenny Ljungberg | Costume Designer, Designer, Lighting Designer | 2010 - 2012 | 17 | |
| Ling, Peter | Peter Ling | Designer | 1990 | 2 | |
| Langeland, Ann-Britt | Ann-Britt Langeland | Actor | 1969 - 1978 | 25 | |
| Liesebrecht, Mechthild | Mechthild Liesebrecht | Actor | 1977 - 1992 | 2 | |
| Lause, Hermann | Hermann Lause | Actor | 1977 - 1979 | 4 | |
| Loepelmann, Götz | Götz Loepelmann | Costume Designer, Designer | 1975 - 2003 | 16 | |
| Landa, Ruth | Ruth Landa | Actor | 1928 | 1 | |
| Le Gant, Omar | Omar Le Gant | Actor | 1928 | 1 | |
| Lázár, Gida | Gida Lázár | Actor | 1928 | 1 | |
| la Roche, Rena | Rena la Roche | Actor | 1929 | 1 | |
| Le Gallienne, Julie | Julie Le Gallienne | Translator | 1929 - 1940 | 5 | |
| Loughton, Phyllis | Phyllis Loughton | Actor | 1929 | 1 | |
| Liesting, Jos | Jos Liesting | Actor | 1929 | 1 | |
| Low, Jacquie | Jacquie Low | Actor | 1970 | 1 | |
| Libner, Stanisław | Stanisław Libner | Actor | 1970 - 1971 | 2 | |
| Lapinski, Henryk | Henryk Lapinski | Actor | 1970 - 1971 | 2 | |
| Liaskou, Chloï | Chloï Liaskou | Actor | 1978 - 1989 | 2 | |
| Lunøe, Sofie | Sofie Lunøe | Actor | 1970 | 1 | |
| Lancova, F. | F. Lancova | Actor | 1911 | 1 | |
| Lukeš, M. | M. Lukeš | Actor | 1911 | 1 | |
| Linhartova, B. | B. Linhartova | Actor | 1911 | 1 | |
| Leister, Hermione | Hermione Leister | Actor | 1911 | 2 | |
| Lüdowa, Aleksandra | Aleksandra Lüdowa | Actor | 1911 | 1 | |
| Lubicz-Mogilnicka, Halina | Halina Lubicz-Mogilnicka | Actor | 1911 | 1 | |
| Lutz, Ton | Ton Lutz | Actor, Director | 1956 - 1982 | 10 | |
| Lorenz, Christa | Christa Lorenz | Actor | 1974 | 1 | |
| Lasarova, Rumjana | Rumjana Lasarova | Choreographer | 1974 - 1978 | 4 | |
| Lanyer, Charles | Charles Lanyer | Actor | 1974 | 1 | |
| Lindstrøm, Vera | Vera Lindstrøm | Actor | 1911 - 1926 | 3 | |
| Luzanov, D. M. | D. M. Luzanov | Actor | 1912 | 1 | |
| Lelicińska, Kika | Kika Lelicińska | Designer | 1973 | 1 | |
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