| Lessard, Rhianne | Rhianne Lessard | Actor | 2011 | 1 | |
| Larson, Ally | Ally Larson | Actor | 2011 | 1 | |
| Loghin, George Dem. | George Dem. Loghin | Director | 1945 - 1948 | 2 | |
| Lemnaru, Oscar | Oscar Lemnaru | Translator | 1948 | 1 | |
| Liniver-Gusty, Alexandrina | Alexandrina Liniver-Gusty | Actor | 1911 - 1923 | 2 | |
| Labovitz, Frank | Frank Labovitz | Costume Designer | 2013 | 1 | |
| Lancaster, Veronica, J. | Veronica J. Lancaster | Sound Designer | 2013 | 1 | |
| Lynch, Timothy, Hayes | Timothy Hayes Lynch | Actor | 2013 | 1 | |
| Larsen, Janice, Lancaster | Janice Lancaster Larsen | Actor | 2013 | 1 | |
| Lux, Régis | Régis Lux | Actor | 2013 - 2019 | 14 | |
| Lambrou, Nikolaos | Nikolaos Lambrou | Actor | 2013 | 1 | |
| Liakakos, Giannis | Giannis Liakakos | Actor | 1993 - 2013 | 4 | |
| Leßmeister, Anne | Anne Leßmeister | Actor | 2013 | 1 | |
| Lyttle, Missy | Missy Lyttle | Actor | 2013 | 1 | |
| Lincoln, Lizzie | Lizzie Lincoln | Actor | 2013 | 1 | |
| Lazarov, Konstantin | Konstantin Lazarov | Designer | 2013 | 1 | |
| Leitner, Kyle | Kyle Leitner | Sound Designer | 2013 | 1 | |
| Lewek, Kathryn | Kathryn Lewek | Actor | 2011 | 1 | |
| Lăzărescu, Vasile | Vasile Lăzărescu | Actor | 1943 - 1954 | 5 | |
| Lahiri, Arghya | Arghya Lahiri | Lighting Designer | 2016 - 2017 | 3 | |
| Laxmi, Vijaya | Vijaya Laxmi | Musician | 2016 - 2017 | 2 | |
| Lekstutytė, Eglė | Eglė Lekstutytė | Actor | 2011 | 1 | |
| Lacković, Strahinja | Strahinja Lacković | Actor | 2011 | 6 | |
| Laird, Katelyn | Katelyn Laird | Actor | 2013 | 1 | |
| Lasser-Gold, Alex | Alex Lasser-Gold | Actor | 2013 | 1 | |
| Levy, Rachel | Rachel Levy | Actor | 2013 | 1 | |
| Logan, Michael | Michael Logan | Actor | 2013 | 1 | |
| Leonescu, Adriana | Adriana Leonescu | Costume Designer, Designer | 1969 | 2 | |
| Lazăr, Ovidiu | Ovidiu Lazăr | Director | 1991 - 2001 | 3 | |
| László, Gerő | Gerő László | Actor | 1974 | 1 | |
| Langer, Csaba | Csaba Langer | Actor | 1996 | 1 | |
| Lupu, János | János Lupu | Actor | 1996 | 1 | |
| Lynne, Rita | Rita Lynne | Actor | 2013 | 1 | |
| Ljungqvist, Anton | Anton Ljungqvist | Actor | 2013 | 1 | |
| Lohinszky, Loránd | Loránd Lohinszky | Actor | 1980 | 1 | |
| Lambert, Jane | Jane Lambert | Costume Designer | 2013 | 1 | |
| Lindert-Knöppel, Keara | Keara Lindert-Knöppel | Actor | 2014 | 5 | |
| Lerch, Markus | Markus Lerch | Actor | 2017 - 2018 | 2 | |
| Löhmann, Alexis | Alexis Löhmann | Actor | 1908 | 1 | |
| Leskovec, Catherine | Catherine Leskovec | Actor | 2013 | 1 | |
| Lepa, Sorin | Sorin Lepa | Actor | 1966 | 1 | |
| Lemnaru, Ion | Ion Lemnaru | Actor | 1968 | 1 | |
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