- Mimi Rogers (3 movies)
- Mini Anden (3 movies)
- Mireille Enos (3 movies)
- Mitch Pileggi (3 movies)
- Mizuo Peck (3 movies)
- Molly C. Quinn (3 movies)
- Molly Sims (3 movies)
- Mona Marshall (3 movies)
- Morena Baccarin (3 movies)
- Mousa Kraish (3 movies)
- Macaulay Culkin (2 movies)
- Mackenzie Gray (2 movies)
- Macy Gray (2 movies)
- Maddie Corman (2 movies)
- Madeleine Sami (2 movies)
- Madison Pettis (2 movies)
- Madonna (2 movies)
- Madylin Sweeten (2 movies)
- Magda Apanowicz (2 movies)
- Maggie Elizabeth Jones (2 movies)
- Maggie Geha (2 movies)
- Maggie Lawson (2 movies)
- Maggie Siff (2 movies)
- Maile Flanagan (2 movies)
- Malcolm Barrett (2 movies)
- Malcolm Shields (2 movies)
- Malcolm Stewart (2 movies)
- Malcolm Tierney (2 movies)
- Mamie Gummer (2 movies)
- Mara Hobel (2 movies)
- Marc Abbink (2 movies)
- Marc Lawrence (2 movies)
- Marc Pickering (2 movies)
- Marci T. House (2 movies)
- Marcia Jean Kurtz (2 movies)
- Marco Albrecht (2 movies)
- Marco Assante (2 movies)
- Marco Khan (2 movies)
- Marcus Carl Franklin (2 movies)
- Marcus Hester (2 movies)
- Margery Mason (2 movies)
- Margo Stilley (2 movies)
- Margot Farley (2 movies)
- María Botto (2 movies)
- Maria Breyman (2 movies)
- María Conchita Alonso (2 movies)
- Maria Grazia Cucinotta (2 movies)
- Maria Howell (2 movies)
- Mariah Bonner (2 movies)
- Maribeth Monroe (2 movies)