| 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 | |
| László, Gerő | Gerő László | Actor | 1974 | 1 | |
| Landau, Ruth | Ruth Landau | Actor | 2013 | 1 | |
| LoCascio, Shannon | Shannon LoCascio | Actor | 2013 | 1 | |
| Lockett, Donovan | Donovan Lockett | Actor | 2013 | 1 | |
| Lindenfelzer, Richard | Richard Lindenfelzer | Actor | 2013 | 1 | |
| Levitt, Laine | Laine Levitt | Actor | 2013 | 1 | |
| Lambora, Marek | Marek Lambora | Actor | 2016 | 1 | |
| Lo, Fei-tsuei | Fei-tsuei Lo | Composer | 2013 | 1 | |
| Leahy, Ronan | Ronan Leahy | Actor | 2013 | 1 | |
| Lynch, Roseanne | Roseanne Lynch | Actor | 2013 | 1 | |
| Lombardi, Vincent | Vincent Lombardi | Actor | 1959 | 2 | |
| Leasure, Cal | Cal Leasure | Actor | 1959 | 2 | |
| Laue, Fritz | Fritz Laue | Actor | 1959 | 1 | |
| Lenz, Gerhard | Gerhard Lenz | Actor | 1959 | 1 | |
| Lorimer, Enid | Enid Lorimer | Actor | 1959 | 2 | |
| Lang, Harold | Harold Lang | Actor | 1958 - 1959 | 2 | |
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