| Longford, Lord | Lord Longford | Costume Designer | 1959 | 1 | |
| Longhurst, Linda | Linda Longhurst | Actor | 1973 | 1 | |
| Longhurst, Rosemary | Rosemary Longhurst | Actor | 2012 | 1 | |
| Longley, Victoria | Victoria Longley | Actor | 1983 - 1986 | 2 | |
| Longmore, Wylie | Wylie Longmore | Actor | 1964 | 1 | |
| Longmore, Wyllie | Wyllie Longmore | Actor, Director | 1975 - 1990 | 4 | |
| Longo, Dorothy | Dorothy Longo | Director | 2018 | 1 | |
| Longo, Marta | Marta Longo | Actor | 2007 | 1 | |
| Longshore, Irene | Irene Longshore | Actor | 2009 - 2010 | 2 | |
| Longstaff, Christian | Christian Longstaff | Actor | 2022 | 1 | |
| Longstaffe, Abigail | Abigail Longstaffe | Actor | 2008 - 2009 | 2 | |
| Longva, Fredrik | Fredrik Longva (Fredrik Longva) | Actor, Director | 2006 - 2022 | 53 | |
| Longwell, Dennis | Dennis Longwell | Actor | 1965 | 1 | |
| Lönnroos, Björn | Björn Lönnroos | Sound Designer | 2000 | 1 | |
| Lonon, Rick | Rick Lonon | Actor | 2000 | 1 | |
| Lonscale, Richard | Richard Lonscale | Actor | 1935 | 1 | |
| Lonsky, Johanna | Johanna Lonsky | Actor | 2004 | 1 | |
| Lontai, István | István Lontai | Actor | 1944 | 1 | |
| Lontou, Afroditi | Afroditi Lontou | Actor | 1967 | 2 | |
| Lonza, Tanko | Tanko Lonza | Actor | 1967 - 1977 | 2 | |
| Lonza, Tonko | Tonko Lonza | Adaptation | 2010 | 1 | |
| Loo, Raine | Raine Loo | Actor | 2004 | 1 | |
| Looft, Richard | Richard Looft (Richard Looft) | Assistant Director | 1989 - 1991 | 3 | |
| Loomis, Dodd | Dodd Loomis | Director | 2009 | 1 | |
| Loomis, Eva | Eva Loomis | Actor | 1995 | 1 | |
| Loomis, Evelyn | Evelyn Loomis (Evelyn Loomis) | Actor | 1906 - 1907 | 6 | |
| Loomis, Harrison | Harrison Loomis | Actor | 1935 | 1 | |
| Looney, Rhea | Rhea Looney | Actor | 1965 | 1 | |
| Loorits, Leida | Leida Loorits (Leida Loorits) | Actor | 1943 | 1 | |
| Loos, Hans | Hans Loos (Hans Loos) | Actor | 1921 | 1 | |
| Loos, Josef | Josef Loos (Josef Loos) | Actor | 1891 - 1922 | 4 | |
| Loos, Lina | Lina Loos | Actor | 1924 | 1 | |
| Loos, Theodor | Theodor Loos (Theodor Loos) | Actor | 1911 - 1923 | 28 | |
| Loos, Werner | Werner Loos (Werner Loos) | Actor | 1933 | 1 | |
| Loose, Adolf | Adolf Loose | Director | 1962 | 1 | |
| Loosemore, Dieter | Dieter Loosemore | Actor | 2009 | 2 | |
| Loosli, Jonathan | Jonathan Loosli | Actor | 2016 | 1 | |
| Loosveldt, Germaine | Germaine Loosveldt | Actor | 1956 - 1957 | 9 | |
| Looze, Karen | Karen Looze | Actor | 1963 | 1 | |
| Lopatić, Jelena | Jelena Lopatić | Actor | 2005 - 2006 | 2 | |
| Lopatnikoff, Nikolai | Nikolai Lopatnikoff | Composer | 1928 | 1 | |
| Lopatová, Vlasta | Vlasta Lopatová | Mask Maker | 1964 - 1990 | 4 | |
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