7,133 people 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.
| Luba Malina Actor | 2 productions |
| Lubov Roudenko Actor | 2 productions |
| Lucie Arnaz Actor | 2 productions |
| Lucy Moss Book Writer, Composer, Director, Lyricist | 2 shows |
| Lucy Simon Composer | 2 shows |
| Luka Kain Composer | 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 Bruni Director | 2 shows |
| Marc Wilder Actor | 2 productions |
| Marco Paguia Orchestrator | 2 shows |
| Marco Pennette Book Writer | 2 shows |
| 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 |
| Marguerite Derricks Choreographer | 2 shows |
| Maria Wirries Actor | 2 productions |
| Marian Horosko Actor | 2 productions |
| Marianne Elliott Director | 2 shows |
| Marie Burke Actor | 2 productions |
| Marie Cahill Actor | 2 productions |
| Marie Carroll Actor | 2 productions |
| Marie Gibson Director | 2 productions |
| Marijane Maricle Actor | 2 productions |
| Marilyn Bergman Lyricist | 2 shows |
| Marilyn Bradley Actor | 2 productions |
| Marilyn Caskey Composer | 2 productions |
| Marion Davies Actor | 2 productions |
| Marissa Jaret Winokur Actor | 2 productions |
| Mark Allen Composer, Lyricist | 2 productions |
| Mark Baker Composer | 2 productions |
| Mark Brokaw Director | 2 shows |
| Mark Chmiel Actor | 2 productions |
| Mark Linn-Baker Actor | 2 productions |
| Mark O’Donnell Book Writer | 2 shows |
| Mark Syers Actor | 2 productions |
| Marla Mindelle Book Writer | 2 productions |
| Marshall Brickman Book Writer | 2 shows |
| Marshall Jamison Director | 2 shows |
| Marti Rolph Actor | 2 productions |
| Marti Stevens Director | 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 |
| Mary Wickes Actor | 2 productions |