| Lysander, Per | Per Lysander | Translator | 2000 – 2008 | 2 | |
| Lyth, Ragnar, | Ragnar Lyth | Adaptation, Director | 1993 – 2013 | 7 | |
| Larsen, Thorvald | Thorvald Larsen | Actor | 1926 – 1936 | 6 | |
| Luiza, Natália, | Natália Luiza | Actor | 1990 | 2 | |
| Lattu, Topias | Topias Lattu | Actor | 2002 – 2003 | 1 | |
| Looft, Richard | Richard Looft | Assistant Director | 1989 – 1990 | 3 | |
| Lundsholt, Torunn | Torunn Lundsholt | Actor | 1972 | 1 | |
| Lloyd Barrie, Julia | Julia Lloyd Barrie | Actor | 1992 | 3 | |
| Lutje, Tim, | Tim Lutje | Actor | 2004 | 1 | |
| Lutje, Sascha, | Sascha Lutje | Actor | 2004 | 1 | |
| Lindberg, Terje, | Terje Lindberg | Adaptation, Dramaturg | 2003 | 44 | |
| Lederer, Francis | Francis Lederer | Actor | 1944 – 1946 | 3 | |
| Lunøe, Lars | Lars Lunøe | Actor | 1967 – 2000 | 12 | |
| Larssen, Tryggve, | Tryggve Larssen | Actor, Mask Maker | 1917 – 2006 | 64 | |
| Løken, Torunn, | Torunn Løken | Mask Maker | 1986 – 2006 | 4 | |
| Lloyd, Robert Langdon | Robert Langdon Lloyd | Actor | 1994 | 6 | |
| Lund, Rolf Arly, | Rolf Arly Lund | Actor | 1972 – 2009 | 67 | |
| Lafferty, John | John Lafferty | Lighting Designer, Sound Designer | 1963 | 2 | |
| List, Marie Therese | Marie Therese List | Mask Maker | 1974 | 2 | |
| Lübcke, Gesine | Gesine Lübcke | Actor | 1977 | 3 | |
| Lücke, Barbara | Barbara Lücke | Dramaturg | 1998 | 1 | |
| Lehmkühler, Andrea | Andrea Lehmkühler | Actor | 1998 | 1 | |
| Lohmeyer, Nora-Christin | Nora-Christin Lohmeyer | Actor | 1998 | 1 | |
| Lauffen, Richard, | Richard Lauffen | Actor | 1934 | 5 | |
| Lindsley, Charles F., | Charles F. Lindsley (Charles F. Lindsley) | Director | 1951 | 1 | |
| Læstadius, Lars-Levi | Lars-Levi Læstadius | Director, Producer, Translator | 1944 | 9 | |
| Lliwa, Przemyslaw | Przemyslaw Lliwa | Choreographer | 1989 | 1 | |
| Lasoń, Władysław | Władysław Lasoń | Director | 1955 | 1 | |
| Lebiush, Yehudith | Yehudith Lebiush | Actor | 1959 | 1 | |
| Løchen, Esther, | Esther Løchen | Actor | 1913 | 1 | |
| Lindwall, Tore | Tore Lindwall | Actor | 1928 | 7 | |
| Luoma, Timo-Pekka | Timo-Pekka Luoma | Actor | 2006 | 1 | |
| Larsen, Thorleif, | Thorleif Larsen | Actor | 1922 | 1 | |
| Lindén, Lars-Erik, | Lars-Erik Lindén | Designer | 1988 – 2007 | 134 | |
| Larsen, Pia Immerstein, | Pia Immerstein Larsen | Choreographer | 1996 | 1 | |
| Lenvik, Lars Fredrik Berg, | Lars Fredrik Berg Lenvik | Actor | 1996 | 1 | |
| Liljenbøl, Frode, | Frode Liljenbøl | Actor | 1924 – 1928 | 1 | |
| Lundahl, Selma, | Selma Lundahl | Actor | 1880 | 3 | |
| la Cour, Lise | Lise la Cour | Choreographer | 1985 | 1 | |
| Larsen, Johannes Anker | Johannes Anker Larsen | Director | 1936 – 1943 | 3 | |
| Løfqvist, Gyrd | Gyrd Løfqvist | Actor | 1954 – 2000 | 5 | |
| Larsen, Niels Bjørn | Niels Bjørn Larsen | Choreographer | 1968 | 1 | |
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