| Lieven, Tania | Tania Lieven | Director | 1952 | 1 | |
| Logan, Campbell | Campbell Logan | Producer | 1950 | 1 | |
| Latham, Stuart | Stuart Latham | Director | 1958 | 1 | |
| Ljugh, Esse W. | Esse W. Ljungh | Director | 1955 | 1 | |
| Lehn, Georg | Georg Lehn | Actor | 1955 | 1 | |
| Lehman, June | June Lehman | Actor | 1955 | 1 | |
| Learoyd , Barry | Barry Learoyd | Designer | 1947 - 1954 | 3 | |
| Lockhart, Araby | Araby Lockhart | Actor | 1952 | 1 | |
| Lowther, George | George Lowther | Producer | 1954 | 1 | |
| Luce, Claire | Claire Luce | Actor | 1952 | 1 | |
| Livesey, Roger | Roger Livesey | Actor | 1950 | 1 | |
| Lah, Vlasta | Vlasta Lah | Assistant Director | 1943 | 1 | |
| Lyssa, Fred | Fred Lyssa | Producer | 1935 | 1 | |
| Lorraine, Harry | Harry Lorraine | Producer | 1920 | 1 | |
| Lantz, Herman | Herman Lantz | Actor | 1917 | 1 | |
| Lee, Jennie | Jennie Lee | Actor | 1916 | 1 | |
| Lubin, Siegmund | Siegmund Lubin | Producer | 1911 | 1 | |
| Lynch, Zoe | Zoe Lynch | Producer | 2022 | 1 | |
| Longstaff, Christian | Christian Longstaff | Actor | 2022 | 1 | |
| Leisner, Kasper | Kasper Leisner | Actor | | 2 | |
| Lindborg, Åke "Ådi" | Åke "Ådi" Lindborg | Sound Designer | 2022 | 1 | |
| Lund, Tone Aminda Gøytil | Tone Aminda Gøytil Lund | Costume Designer | 2022 | 2 | |
| Lithman, Karin | Karin Lithman | Actor | 2022 - 2025 | 2 | |
| Lecis, Lelio | Lelio Lecis | Director, Lighting Designer | 2021 | 2 | |
| Loddgard, Magnus | Magnus Loddgard | Musical Director, Musician | 2022 | 2 | |
| Laukkanen, Seppo | Seppo Laukkanen | Producer | 2022 | 2 | |
| Lawton, Caroline | Caroline Lawton | Actor | 2022 - 2025 | 5 | |
| Landry, Eve | Eve Landry | Actor | 2022 | 2 | |
| Leblanc, Éric | Éric Leblanc | Actor | 2022 | 2 | |
| Lehoux, Joanie | Joanie Lehoux | Actor | 2022 | 2 | |
| Lucas, Roméo | Roméo Lucas | Actor | 2022 | 1 | |
| Labbé, Jean-François | Jean-François Labbé | Lighting Designer | 2022 | 2 | |
| Lello, Rita | Rita Lello | Actor, Costume Designer, Designer, Dramaturg, Translator | 2022 | 5 | |
| Letria, Vasco | Vasco Letria | Lighting Designer | 2022 | 1 | |
| Lađević, Momo | Momo Lađević | Sound Designer | 2022 | 1 | |
| Lloyd, Jamie | Jamie Lloyd | Director | 2020 - 2023 | 2 | |
| Lungren, Zora | Zora Lungren | Actor | 2020 | 1 | |
| López, Pol | Pol López | Actor | 2015 - 2023 | 9 | |
| Lawrence, Dan | Dan Lawrence | Sound Designer | 2022 | 1 | |
| Lugton, James | James Lugton | Actor | 2022 | 1 | |
| Lizotte, Geneviève | Geneviève Lizotte | Designer | 2022 | 2 | |
| Lie, Tonje | Tonje Lie | Mask Maker | 2022 - 2024 | 4 | |
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