- M. Emmet Walsh (2 films)
- Ma Dong-seok (2 films)
- Mabel Rivera (1 film)
- Macaulay Culkin (2 films)
- Macdonald Carey (1 film)
- Mackenson Bijou (1 film)
- Mackenzie Davis (1 film)
- Macon Blair (1 film)
- Macy Shackleton (1 film)
- Madeleine Arthur (1 film)
- Madeleine Stowe (2 films)
- Madeleine Yuna Voyles (1 film)
- Madeline Carroll (1 film)
- Madeline Kahn (1 film)
- Madelyn Grace (1 film)
- Madison (1 film)
- Madison Iseman (1 film)
- Madison Wolfe (1 film)
- Madisyn Shipman (1 film)
- Mads Mikkelsen (5 films)
- Mads Sjøgård Pettersen (1 film)
- Maëlys Ricordeau (1 film)
- Maeve Quinlan (1 film)
- Magalie Lépine-Blondeau (1 film)
- Magdalena Lamparska (2 films)
- Maggie Grace (6 films)
- Maggie Gyllenhaal (1 film)
- Maggie Mulubwa (1 film)
- Maggie Q (2 films)
- Maggie Smith (1 film)
- Magnus Börjeson (1 film)
- Magnus Millang (1 film)
- Maha El Boukhari (1 film)
- Mahamat Amine Benrachid (1 film)
- Mahershala Ali (4 films)
- Mahnaz Mohamadi (1 film)
- Maia Morgenstern (1 film)
- Maika Monroe (5 films)
- Maïmouna Gueye (1 film)
- Maisie Williams (2 films)
- Maitreyi Ramakrishnan (1 film)
- Maïwene Barthelemy (1 film)
- Maïwenn (2 films)
- Majd Asmi (1 film)
- Majd Mastoura (1 film)
- Makenzy Lombet (1 film)
- Makiko Watanabe (1 film)
- Makita Samba (1 film)
- Malcolm McDowell (4 films)
- Maleah Nipay-Padilla (1 film)
