| Livingston, Lona | Lona Livingston | Actor | 2009 - 2011 | 2 | |
| Larson, James | James Larson | Actor | 2008 | 2 | |
| Leuenberger, Marie | Marie Leuenberger | Actor | 2008 - 2009 | 2 | |
| Lehmann, Ueli | Ueli Lehmann | Actor | 2008 - 2009 | 2 | |
| Liekens, Caroline | Caroline Liekens | Actor | 2008 - 2009 | 2 | |
| Löschner, Dirk | Dirk Löschner | Director | 2010 | 2 | |
| Lunning Jr., Ev | Ev Lunning Jr. | Actor, Director | 2010 - 2016 | 2 | |
| Leiß, Gerald | Gerald Leiß | Actor | 2010 | 2 | 2 |
| Liebehenschel, Sandy | Sandy Liebehenschel | Actor | 2010 | 2 | |
| Loosemore, Dieter | Dieter Loosemore | Actor | 2009 | 2 | |
| Lohrengel, Felix | Felix Lohrengel | Actor | 2009 | 2 | |
| Laufer, Charity | Charity Laufer | Adaptation | 2010 - 2011 | 2 | |
| Luik, Vilma | Vilma Luik | Actor | 2001 - 2011 | 2 | |
| Luik, Kristjan | Kristjan Luik | Actor | 2001 - 2011 | 2 | |
| Loho, Artis | Artis Loho | Actor | 2001 - 2011 | 2 | |
| Linton, Kia | Kia Linton | Actor | 2010 | 2 | |
| Lincicum, Shirley | Shirley Lincicum | Actor | 2010 | 2 | |
| Lucas, Daisy Jo | Daisy Jo Lucas | Actor | 2010 | 2 | |
| Lolov, Sava | Sava Lolov | Actor | 2010 - 2011 | 2 | |
| Lacroix, Thibault | Thibault Lacroix | Actor | 2010 - 2011 | 2 | |
| LeVasseur, Marc | Marc LeVasseur | Actor | 2009 - 2011 | 2 | |
| Lindstedt, Iida-Maaria | Iida-Maaria Lindstedt | Actor | 2009 - 2010 | 2 | |
| Lingen, Theo | Theo Lingen | Actor | 1952 - 1966 | 2 | |
| Litzinger, Hartmut | Hartmut Litzinger | Lighting Designer | 1998 - 2016 | 2 | |
| Lidor , Eldad | Eldad Lidor | Composer, Musical Director | 2010 | 2 | |
| Liepa, Mārtiņš | Mārtiņš Liepa | Actor | 2010 - 2012 | 2 | 2 |
| Link, Sina | Sina Link | Actor | 2010 - 2011 | 2 | |
| Lütolf, Celine | Celine Lütolf | Actor | 2010 - 2011 | 2 | |
| LaPorte, Christopher M. | Christopher M. LaPorte | Composer, Sound Designer | 2011 | 2 | |
| Lazarevic, Petar | Petar Lazarevic | Actor | 2011 | 2 | |
| Lindhorst-Apfelthaler, Dominik | Dominik Lindhorst-Apfelthaler | Actor | 2013 | 2 | 2 |
| Lippmann, Laura | Laura Lippmann | Actor | 2012 - 2013 | 2 | |
| Lehmann, Rolf | Rolf Lehmann | Lighting Designer | 2011 | 2 | |
| Losert, Ronja | Ronja Losert | Actor | 2013 | 2 | |
| Lieder, Bettina | Bettina Lieder | Actor | 2013 - 2019 | 2 | |
| Linke, Adrian | Adrian Linke | Actor | 2011 | 2 | 1 |
| Lüddecke, Robert | Robert Lüddecke | Actor | 2012 - 2013 | 2 | |
| Liebsch, Johannes | Johannes Liebsch | Actor | 1964 | 2 | |
| Locchi, Laura | Laura Locchi | Choreographer | 2011 | 2 | |
| Lichtenfeld, Manfred | Manfred Lichtenfeld | Actor | 1964 | 2 | |
| Langebæk, Jørgen | Jørgen Langebæk | Actor | 1943 | 2 | |
| Leigh-Hunt, Barbara | Barbara Leigh-Hunt | Actor | 1963 | 2 | |
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