| Lindroos, Keijo | Keijo Lindroos | Actor | 1966 - 1975 | 2 | |
| Larsen, Robert | Robert Larsen | Actor | 1966 - 1975 | 2 | |
| Leighton, Alexes | Alexes Leighton | Actor | 1894 | 1 | |
| Linford, Debbie | Debbie Linford | Actor | 1979 | 1 | |
| LeBaron, Leah | Leah LeBaron | Actor | 1979 | 1 | |
| Lippe, Fr. | Fr. Lippe | Actor | 1878 | 1 | |
| Latimore, Frank | Frank Latimore | Actor | 1979 | 1 | |
| Lehmbrock, Peter | Peter Lehmbrock | Actor | 1975 | 2 | |
| Launder, Michael | Michael Launder | Actor | 1977 | 1 | |
| Lundberg, Marie | Marie Lundberg | Actor | 1979 | 1 | |
| Lindström, Åke | Åke Lindström | Actor | 1955 - 1975 | 2 | |
| Lloyd, Tony | Tony Lloyd | Actor | 1972 | 1 | |
| Lasin, Kurt | Kurt Lasin | Actor | 1972 | 1 | |
| Luyken, Annette | Annette Luyken | Actor | 1973 | 1 | |
| Lindblom, Gunnel | Gunnel Lindblom | Actor, Adaptation, Director | 1957 - 2013 | 13 | |
| Lederer, Suzanne | Suzanne Lederer | Actor | 1973 | 1 | |
| Lindberg, Willy | Willy Lindberg | Actor | 1973 | 1 | |
| Logan, Catherine | Catherine Logan | Actor | 1972 | 1 | |
| Lazaridis, Stefanos | Stefanos Lazaridis | Designer | 1975 | 1 | |
| Lyras, Ntinos | Ntinos Lyras | Actor | 1979 - 2017 | 5 | |
| Lupi, Roldano | Roldano Lupi | Actor | 1976 | 4 | |
| Lindeborg, Liselott | Liselott Lindeborg | Actor | 1979 | 2 | |
| Lie, Arne | Arne Lie | Actor | 1956 - 2006 | 8 | |
| Leimbacher, Verena | Verena Leimbacher | Actor | 1973 - 1981 | 2 | |
| 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 | |
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