| Leon, Dorin | Dorin Leon | Actor | 1972 - 1973 | 2 | |
| Logan, Crawford | Crawford Logan | Actor | 1975 - 1979 | 2 | |
| Larson, Philip | Philip Larson | Director | 1973 - 1983 | 2 | |
| Leibert, Michael | Michael Leibert | Actor | 1973 | 1 | |
| Laramore, Paul | Paul Laramore | Actor | 1973 - 1980 | 2 | |
| Lakeman, Ray | Ray Lakeman | Actor, Designer | 1973 | 3 | |
| Loukissa-Kyriakaki, Olympia | Olympia Loukissa-Kyriakaki | Musical Director | 1976 - 1979 | 3 | |
| Lau, Patrick | Patrick Lau | Director | 1979 | 2 | |
| Lukan, Sylvia | Sylvia Lukan | Actor | 1975 | 1 | |
| Lederer, Jürgen | Jürgen Lederer | Actor | 1975 | 1 | |
| Loy, John | John Loy | Director | 1975 | 1 | |
| Larsen, Odd | Odd Larsen | Designer | 1975 | 1 | |
| Landelius, Anders | Anders Landelius | Mask Maker, Puppet Designer | 1975 | 2 | |
| Lipfert, Oswald | Oswald Lipfert | Actor, Director | 1972 - 1996 | 3 | |
| Luguwoi, Nikolai | Nikolai Luguwoi | Actor | 1972 | 2 | |
| Liepins, Harijs | Harijs Liepins | Actor | 1975 | 1 | |
| Lipowitz, Alexander | Alexander Lipowitz | Actor | 1898 - 1899 | 2 | |
| Longhurst, Linda | Linda Longhurst | Actor | 1973 | 1 | |
| Livmane, Akvelina | Akvelina Livmane | Actor | 1975 | 1 | |
| Linins, Arnolds | Arnolds Linins | Director | 1975 | 1 | |
| Ludwig, Karl | Karl Ludwig | Actor | 1906 - 1908 | 5 | |
| Lühr, Peter | Peter Lühr | Actor | 1956 - 1979 | 4 | |
| Lühr, Wolfried | Wolfried Lühr | Actor | 1975 | 1 | |
| Ludwig, Karen | Karen Ludwig | Actor | 1972 - 1973 | 2 | |
| Laxness, Halldór | Halldór Kiljan Laxness | Translator | 1954 - 1976 | 2 | |
| Lippert, E. | E. Lippert | Actor | 1897 - 1898 | 2 | |
| Lippert, Else | Else Lippert | Actor | 1897 | 1 | |
| Lambert, Tonny | Tonny Lambert | Actor | 1975 | 1 | |
| Lehmann, Karin | Karin Lehmann | Actor | 1981 | 1 | |
| Langer, Günter | Günter Langer | Director | 1979 | 2 | |
| Louca, Samantha | Samantha Louca | Actor | 1979 | 1 | |
| Lussnigg, Hanna | Hanna Lussnigg | Actor | 1976 | 1 | |
| Lally, Sean | Sean Lally | Actor | 2014 | 1 | |
| Laszlo, Marianella | Marianella Laszlo | Actor | 1981 | 1 | |
| Lewis, Alvia | Alvia Lewis | Actor | 1979 | 1 | |
| Lochner, Anita | Anita Lochner | Actor | 1978 - 2003 | 3 | |
| Loudon, Jaki | Jaki Loudon | Actor | 2013 | 1 | |
| Lynch, Richard | Richard Lynch | Actor | 1976 | 1 | |
| Lacoste, Arnaud | Arnaud Lacoste | Actor | 1981 | 1 | |
| Lejude, Jean-Marie | Jean-Marie Lejude | Actor | 1981 | 1 | |
| Lintott, Kenneth | Kenneth Lintott | Mask Maker | 1972 | 1 | |
| La Placa, Giovanna | Giovanna La Placa | Costume Designer | 1972 | 1 | |
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