| Lahaine, Dietmar | Dietmar Lahaine | Actor | 1988 - 2002 | 2 | |
| Lange, Katherina | Katherina Lange | Actor | 1988 - 2000 | 4 | 1 |
| Lapotaire, Jane | Jane Lapotaire | Actor | 1988 - 1994 | 4 | 1 |
| Lamers, Jan, Joris | Jan Joris Lamers | Actor, Costume Designer, Designer, Director, Dramaturg, Lighting Designer | 1988 - 1994 | 11 | |
| Lorena Marzolini, Lorena | Lorena Lorena Marzolini | Actor | 1988 - 1989 | 14 | |
| Lindquist, Frank | Frank Lindquist | Composer | 1988 | 1 | |
| Laurinaitytė, Faustina | Faustina Laurinaitytė | Actor | 1988 | 1 | 1 |
| Leman, Andrew H. | Andrew H. Leman | Actor | 1988 | 1 | |
| Layne, Mary | Mary Layne | Actor | 1988 | 1 | |
| Liagkas, Dimitris Liagkas | Dimitris Liagkas | Actor | 1988 | 1 | |
| Lorandou, Lili | Lili Lorandou | Costume Designer, Designer | 1988 | 2 | |
| Linke, Gerhard | Gerhard Linke | Actor | 1988 | 1 | |
| Long,, Michael | Michael Long | Actor | 1988 | 1 | |
| Levante, Aurelio | Aurelio Levante | Actor | 1988 | 1 | |
| Leighton, Maxinne, Rhea | Maxinne Rhea Leighton | Actor | 1988 | 1 | |
| Lusena, Sara | Sara Lusena | Actor | 1988 | 1 | |
| Ljuzkanov, Nikolaj | Nikolaj Ljuzkanov | Adaptation, Director, Translator | 1988 | 3 | |
| Ljuzkanov, Vladimir | Vladimir Ljuzkanov | Actor | 1988 | 1 | |
| Luongo, John | John Luongo | Actor | 1988 | 1 | |
| Lyng, Selma, Therese | Selma Therese Lyng | Actor | 1988 | 1 | |
| Lyngra Høgås, Marja | Marja Lyngra Høgås | Actor | 1988 | 1 | |
| Lynch, Barry | Barry Lynch | Actor | 1988 | 2 | |
| Letts, Dominic | Dominic Letts | Actor | 1988 | 2 | |
| Le Saché, Vickie | Vickie Le Saché | Designer | 1988 | 1 | |
| Lenkeit, Antje | Antje Lenkeit | Adaptation, Director, Translator | 1987 - 2007 | 11 | 1 |
| Lézy, Geneviève | Geneviève Lézy | Adaptation | 1987 - 2003 | 4 | 1 |
| Lippisch, Vera | Vera Lippisch | Actor | 1987 - 1993 | 3 | |
| Lüttichau, Helmfried von | Helmfried von Lüttichau | Actor | 1987 - 1993 | 3 | |
| Leal, Augusto | Augusto Leal | Actor | 1987 - 1993 | 2 | |
| Lindholm, Magne | Magne Lindholm | Actor | 1987 - 1989 | 5 | 1 |
| Lindell, Jesper | Jesper Lindell | Actor | 1987 | 1 | |
| Lloyd, David | David Lloyd | Actor | 1987 | 1 | |
| Lushington, Michael | Michael Lushington | Actor | 1987 | 1 | |
| Lechmann, Leontina | Leontina Lechmann | Actor | 1987 | 1 | |
| Litvin, Rebeca | Rebeca Litvin | Actor | 1987 | 6 | |
| Lutz, Stefan | Stefan Lutz | Actor | 1987 | 10 | |
| Labourier, Dominique | Dominique Labourier | Actor | 1987 | 1 | |
| Lassalle, Jacques | Jacques Lassalle | Director | 1987 | 1 | 1 |
| Lampe, Astrid | Astrid Lampe | Actor | 1987 | 1 | |
| Lloyd Pack, Roger | Roger Lloyd Pack | Actor | 1987 | 1 | |
| Ludwig, Alexander | Alexander Ludwig | Actor | 1987 | 1 | |
| Lewis, Kim | Kim Lewis | Actor | 1987 | 2 | |
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