| Lina, Sofia Ahmed | Sofia Ahmed Lina | Actor | 1999 | 2 | |
| Lipon, Sydur Rahman | Sydur Rahman Lipon | Actor | 1999 | 2 | |
| Lacroix, Nathalie | Nathalie Lacroix | Actor | 1999 | 11 | |
| Lawler, John | John Lawler | Director | 1999 | 1 | |
| Lester, Gideon | Gideon Lester | Dramaturg | 1999 | 1 | 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 | 1 |
| 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 | 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 | |
| Lavecchi, Alessio | Alessio Lavecchi | Actor | 1999 | 1 | |
| Lefèvre, Margot | Margot Lefèvre | Actor | 1999 - 2000 | 5 | |
| Lithgow, Ian | Ian Lithgow | Actor | 1999 - 2001 | 2 | |
| Larsen, Gunaar | Gunaar Larsen | Translator | 1999 - 2001 | 2 | |
| Lori, Renzo | Renzo Lori | Actor | 1999 - 2001 | 10 | |
| Lievenbrück, Dorit | Dorit Lievenbrück | Costume Designer, Designer | 1999 - 2002 | 8 | 1 |
| Litlere, Arnhild | Arnhild Litlere | Actor | 1999 - 2004 | 2 | |
| Lava, Sandra | Sandra Lava | Actor | 1999 - 2004 | 15 | |
| Leittersdorf, Vincent | Vincent Leittersdorf | Actor | 1999 - 2006 | 9 | 1 |
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