- Mary McCormack (2 movies)
- Mary McDonnell (2 movies)
- Mary Nesbitt (2 movies)
- Mary Pat Gleason (2 movies)
- Marylouise Burke (2 movies)
- Masasa Moyo (2 movies)
- Masashi Ishizuka (2 movies)
- Mason Lee (2 movies)
- Mathieu Kassovitz (2 movies)
- Matt Bettinelli-Olpin (2 movies)
- Matt Corboy (2 movies)
- Matt Decaro (2 movies)
- Matt Dillon (2 movies)
- Matt Doran (2 movies)
- Matt Landers (2 movies)
- Matt Lasky (2 movies)
- Matt McColm (2 movies)
- Matt Miller (2 movies)
- Matt O'Leary (2 movies)
- Matt Rowan (2 movies)
- Matt Schulze (2 movies)
- Matt Servitto (2 movies)
- Matt Sloan (2 movies)
- Matt Townsend (2 movies)
- Matthew Anderson (2 movies)
- Matthew Chamberlain (2 movies)
- Matthew Fox (2 movies)
- Matthew Kimbrough (2 movies)
- Matthew Lawrence (2 movies)
- Matthew Lillard (2 movies)
- Matthew Marsden (2 movies)
- Matthew O'Neill (2 movies)
- Matthew Walker (2 movies)
- Matthew Wolf (2 movies)
- Matthew Zuk (2 movies)
- Matuse Paz (2 movies)
- Maura Tierney (2 movies)
- Max Baker (2 movies)
- Max Charles (2 movies)
- Max Daniels (2 movies)
- Max Fairchild (2 movies)
- Max Martini (2 movies)
- Max Murphy (2 movies)
- Max Perlich (2 movies)
- Meat Loaf (2 movies)
- Meg Ryan (2 movies)
- Meg Thalken (2 movies)
- Meghan McLeod (2 movies)
- Mel Brooks (2 movies)
- Mel Fair (2 movies)