- Milton Welsh (2 movies)
- Mindy Kaling (2 movies)
- Misa Koprova (2 movies)
- Mitchell Ryan (2 movies)
- Miyuki Matsunaga (2 movies)
- Mo Gallini (2 movies)
- Moira Kelly (2 movies)
- Moisés Arias (2 movies)
- Mollie McGregor (2 movies)
- Molly McCann (2 movies)
- Monet Mazur (2 movies)
- Mongo Brownlee (2 movies)
- Monica Ayres (2 movies)
- Monica Devereux (2 movies)
- Monica Dolan (2 movies)
- Monica McSwain (2 movies)
- Monica Staggs (2 movies)
- Morten Kirkskov (2 movies)
- Morten Rudå (2 movies)
- Mos Def (2 movies)
- Murphy Guyer (2 movies)
- Murray Hamilton (2 movies)
- Myra McFadyen (2 movies)
- M.C. Gainey (3 movies)
- Mac Brandt (3 movies)
- Mac McDonald (3 movies)
- Madison Arnold (3 movies)
- Mads Sjøgård Pettersen (3 movies)
- Maggie Grace (3 movies)
- Maika Monroe (3 movies)
- Maiya Boyd (3 movies)
- Malcolm Stewart (3 movies)
- Manuel Garcia-Rulfo (3 movies)
- Marc Evan Jackson (3 movies)
- Marc Vann (3 movies)
- Marcus Henderson (3 movies)
- Margaret Qualley (3 movies)
- Margo Martindale (3 movies)
- Margot Kidder (3 movies)
- Mario Roberts (3 movies)
- Mark Camacho (3 movies)
- Mark Gatiss (3 movies)
- Mark Jeffrey Miller (3 movies)
- Mark Pellegrino (3 movies)
- Mark Wheeler (3 movies)
- Mark Williams (3 movies)
- Marlene Forte (3 movies)
- Marlon Brando (3 movies)
- Martin Donovan (3 movies)
- Martin Ferrero (3 movies)