| Lafferey, Dane | Dane Lafferey | Costume Designer | 2019 | 1 | |
| Lake, Beth | Beth Lake | Sound Designer | 2019 | 1 | |
| Lanker, Todd | Todd Lanker | Actor | 2019 | 1 | |
| Lebron, Juan, Rivera | Juan Rivera Lebron | Actor | 2019 | 1 | |
| Lopez, Ruben | Ruben Lopez | Actor | 2019 | 17 | |
| Lindström, Jeff | Jeff Lindström | Actor | 2019 | 17 | |
| Lunn, Greg | Greg Lunn | Actor | 2019 | 1 | |
| Liu, Qiqi | Qiqi Liu | Dancer | 2019 | 1 | |
| Levine, Adam | Adam Levine | Director | 2019 | 1 | |
| Lynn, Cordelia | Cordelia Lynn | Author | 2019 | 2 | |
| Loken, Jessica | Jessica Loken | Actor | 2019 | 1 | |
| Leary, Simon | Simon Leary | Actor | 2019 | 3 | |
| Lid, Tore, Vagn | Tore Vagn Lid | Adaptation, Composer, Director, Playwright | 2019 | 4 | 1 |
| Laher, Torie | Torie Laher | Actor | 2019 | 1 | |
| Lv, Yuzhou | Yuzhou Lv | Adaptation | 2019 | 1 | |
| Lin, Cuixi | Cuixi Lin | Adaptation | 2019 | 1 | |
| Liu, Yixi | Yixi Liu | Lighting Designer | 2019 | 1 | |
| Ladurner, Rudolf | Rudolf Ladurner | Designer, Director | 2019 | 2 | |
| Ladurner, Sabine | Sabine Ladurner | Assistant Director | 2019 | 1 | |
| Light, Oskar | Oskar Light | Lighting Designer | 2019 | 1 | |
| Li, Jianyi | Jianyi Li | Actor | 2019 | 2 | |
| Lastra, Esther | Esther Lastra | Actor | 2019 | 1 | |
| Lobera, Tobías | Tobías Lobera | Actor | 2019 | 1 | |
| Lechou, Katerina | Katerina Lechou | Actor | 2019 | 1 | |
| Lungina, Lilianna, Zinovljevna | Lilianna Zinovljevna Lungina | Translator | 2019 | 1 | |
| Levente, Ördög , Miklós | Ördög Miklós Levente | Actor | 2019 | 1 | |
| Loaiza, Ana Paola | Ana Paola Loaiza | Actor | 2019 | 1 | |
| Li, Chentao | Chentao Li | Actor | 2019 | 2 | |
| Labrecque, Marie-Pier | Marie-Pier Labrecque | Actor | 2019 | 1 | |
| Lambert, Simon-Pierre | Simon-Pierre Lambert | Actor | 2019 | 1 | |
| Lepage, Mathieu | Mathieu Lepage | Actor | 2019 | 1 | |
| Lewald, Liliom | Liliom Lewald | Actor | 2019 | 56 | |
| Lindenberger, Alvise | Alvise Lindenberger | Actor | 2019 | 48 | |
| Liebermann, Tanja | Tanja Liebermann | Costume Designer | 2019 | 8 | |
| Lukin, Zsuzsanna | Zsuzsanna Lukin | Musical Director | 2019 - 2020 | 2 | |
| Lepers , Jeanne | Jeanne Lepers | Actor | 2019 - 2020 | 16 | |
| Le Moal, Julien | Julien Le Moal | Costume Designer | 2019 - 2020 | 16 | |
| Langstrand, Stine, Mari | Stine Mari Langstrand | Actor | 2019 - 2021 | 5 | |
| Leedor, Mor | Mor Leedor | Choreographer | 2020 | 1 | |
| Litvak, Bella | Bella Litvak | Assistant Director | 2020 | 1 | |
| Lord, Aidan | Aidan Lord | Actor | 2020 | 1 | |
| Lubbers, Marc | Marc Lubbers | Actor | 2020 | 1 | |
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