- M. Emmet Walsh (2 movies)
- M.C. Gainey (1 movie)
- Maarten Römer (1 movie)
- Machine Gun Kelly (1 movie)
- Mackenzie Davis (2 movies)
- Mackenzie Foy (1 movie)
- Macon Blair (3 movies)
- Madalen Mills (1 movie)
- Maddie Corman (1 movie)
- Maddie Ziegler (2 movies)
- Madeleine McGraw (1 movie)
- Madeline Brewer (1 movie)
- Madeline Weinstein (1 movie)
- Madison Arnold (1 movie)
- Madison Bready (1 movie)
- Madison Iseman (3 movies)
- Madison Rojas (1 movie)
- Mads Mikkelsen (2 movies)
- Mae Whitman (1 movie)
- Maggie Gyllenhaal (1 movie)
- Maggie Q (1 movie)
- Magnus Krepper (1 movie)
- Magnus Millang (1 movie)
- Mahershala Ali (2 movies)
- Maia Wilson (1 movie)
- Maisie Williams (3 movies)
- Maja Aro (1 movie)
- Maja Rung (1 movie)
- Majid Essaidi (1 movie)
- Majur (1 movie)
- Makenzie Leigh (1 movie)
- Makram Khoury (1 movie)
- Malaika Wakoli-Abigaba (1 movie)
- Malcolm Adams (1 movie)
- Malcolm David Kelley (1 movie)
- Malcolm McDowell (3 movies)
- Malcolm X (1 movie)
- Malea Rose (1 movie)
- Malena Ernman (1 movie)
- Malich Cissé (1 movie)
- Malika Williams (1 movie)
- Mallory Adams (1 movie)
- Mamoudou Athie (3 movies)
- Manav Kaul (1 movie)
- Mandy Moore (1 movie)
- Mandy Patinkin (2 movies)
- Mane Andrew (1 movie)
- Manfred-Anton Algrang (1 movie)
- Manila Luzon (1 movie)
- Manish Dayal (1 movie)