| Lester, Gideon | Gideon Lester | Dramaturg | 1999 | 1 | |
| LaGioia, John | John LaGioia | Actor | 1999 | 1 | |
| Landwehr, Hugh | Hugh Landwehr | Designer | 1999 | 1 | |
| Lange, K. | K. Lange | Actor | 1999 | 1 | |
| Leicht, Isabella | Isabella Leicht | Actor | 1999 | 1 | |
| Layegh, Jamshid | Jamshid Layegh | Actor | 1999 | 1 | |
| Lovett, Marjorie | Marjorie Lovett | Actor | 1999 | 1 | |
| Lynch, Mark | Mark Lynch | Actor | 1999 | 1 | |
| Leuchs, Helge | Helge Leuchs | Actor | 1999 | 3 | |
| Linder, Cornelia | Cornelia Linder | Choreographer | 1999 | 1 | |
| Lynch, Bernie | Bernie Lynch | Composer | 1999 | 2 | |
| Levi, Karin | Karin Levi | Actor | 1999 | 1 | |
| Levi, Amit | Amit Levi | Actor | 1999 | 1 | |
| Lunild, Erik | Erik Lunild | Actor | 1999 | 1 | |
| Larsen, Ib | Ib Larsen | Actor | 1999 | 1 | |
| Larsen, Ove | Ove Larsen | Lighting Designer | 1999 | 1 | |
| Lukin, Pille | Pille Lukin | Actor | 1999 | 1 | |
| Laasik, Oskar | Oskar Laasik | Actor | 1999 | 1 | |
| Lehnert, Heike | Heike Lehnert | Actor | 1999 | 1 | |
| Lodewyck, Laurie | Laurie Lodewyck | Actor | 1999 | 1 | |
| Larson, Philip E. | Philip E. Larson | Director, Translator | 1999 | 2 | |
| Lasmane, Terēze | Terēze Lasmane | Actor | 1999 | 1 | |
| Lloyd, Elisa | Elisa Lloyd | Actor | 1999 | 1 | |
| Lloyd, Destiny | Destiny Lloyd | Actor | 1999 | 1 | |
| Lapthorne, Craig | Craig Lapthorne | Actor | 1999 | 1 | |
| Lin, Ken | Ken Lin | Actor | 1999 | 2 | |
| Lau, Eva | Eva Lau | Actor | 1999 | 2 | |
| L. Pohlmann, - | - L. Pohlmann | Actor | 1999 | 1 | |
| Lepkowski, Dawid | Dawid Lepkowski | Actor | 1999 | 1 | |
| Lee, Michael | Michael Lee | Actor | 1998 - 2018 | 2 | |
| Litzinger, Hartmut | Hartmut Litzinger | Lighting Designer | 1998 - 2016 | 2 | |
| Linney, Romulus | Romulus Linney | Adaptation, Director | 1998 - 2014 | 6 | |
| Laube, Steffen | Steffen Laube | Actor | 1998 - 2007 | 21 | |
| Löchner, Markus | Markus Löchner | Actor | 1998 - 2004 | 2 | |
| López, Nicolai Abrahamsen | Nicolai Abrahamsen López | Actor | 1998 - 2004 | 11 | |
| Luppes, Bert | Bert Luppes | Actor | 1998 - 2004 | 3 | |
| Leal, Indira | Indira Leal | Actor | 1998 - 2002 | 4 | |
| Laucevičius, Liubomiras | Liubomiras Laucevičius | Actor | 1998 - 2000 | 4 | |
| Leroy-Beaulieu, Philippe | Philippe Leroy-Beaulieu | Actor | 1998 - 2000 | 17 | |
| Lūsis, Ivars | Ivars Lūsis | Actor | 1998 - 1999 | 2 | |
| Leabo, Loi | Loi Leabo | Choreographer | 1998 | 1 | |
| Lefmann, Klaus-Peter | Klaus-Peter Lefmann | Actor | 1998 | 1 | |
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