4,750 actors with a page here, the busiest first, counted by the productions and shows we hold for each. Another 24,181 people are named in cast lists and have no page yet.
| Leslie Denniston Actor | 2 productions |
| Leslie Feagan Actor | 2 productions |
| Leslie Stevens Actor | 2 productions |
| Levi Kreis Actor | 2 productions |
| Liana Hunt Actor | 2 productions |
| Liev Schreiber Actor | 2 productions |
| Lila Kedrova Actor | 2 productions |
| Liliane Montevecchi Actor | 2 productions |
| Lina Abarbanell Actor | 2 productions |
| Linedy Genao Actor | 2 productions |
| Lisa Kirk Actor | 2 productions |
| Lloyd Harris Actor | 2 productions |
| Lois Bewley Actor | 2 productions |
| Lois Bolton Actor | 2 productions |
| Lois Ewell Actor | 2 productions |
| Lois Moran Actor | 2 productions |
| Lora Lee Gayer Actor | 2 productions |
| Lorenzo Fuller Actor | 2 productions |
| Louise Brown Actor | 2 productions |
| Louise Hawthorne Actor | 2 productions |
| Luba Malina Actor | 2 productions |
| Lubov Roudenko Actor | 2 productions |
| Lucie Arnaz Actor | 2 productions |
| Lulu McConnell Actor | 2 productions |
| Lyle Kanouse Actor | 2 productions |
| Lyn Connorty Actor | 2 productions |
| Lynne Charnay Actor | 2 productions |
| Lyrica Woodruff Actor | 2 productions |
| Mabel King Actor | 2 productions |
| Madelaine Chambers Actor | 2 productions |
| Madeline Cameron Actor | 2 productions |
| Madeline Kahn Actor | 2 productions |
| Mae Barnes Actor | 2 productions |
| Marc Wilder Actor | 2 productions |
| Marcus Chait Actor | 2 productions |
| Marcus Neville Actor | 2 productions |
| Marcy Wescott Actor | 2 productions |
| Margalo Gillmore Actor | 2 productions |
| Margaret Adams Actor | 2 productions |
| Margaret Colin Actor | 2 productions |
| Margaret Dumont Actor | 2 productions |
| Marge Champion Actor | 2 productions |
| Margo Seibert Actor | 2 productions |
| Maria Wirries Actor | 2 productions |
| Marian Horosko Actor | 2 productions |
| Marie Burke Actor | 2 productions |
| Marie Cahill Actor | 2 productions |
| Marie Carroll Actor | 2 productions |
| Marijane Maricle Actor | 2 productions |
| Marilyn Bradley Actor | 2 productions |
| Marion Davies Actor | 2 productions |
| Marissa Jaret Winokur Actor | 2 productions |
| Mark Chmiel Actor | 2 productions |
| Mark Linn-Baker Actor | 2 productions |
| Mark Syers Actor | 2 productions |
| Marti Rolph Actor | 2 productions |
| Martin Balsam Actor | 2 productions |
| Martin Charnin Actor, Director, Lyricist | 2 productions |
| Mary Elizabeth Mastrantonio Actor | 2 productions |
| Mary Finney Actor | 2 productions |