- Matt McHugh (2 movies)
- Matt Moore (4 movies)
- Matt Willis (1 movie)
- Matthew Boulton (2 movies)
- Matthew Hautau (1 movie)
- Maude Eburne (2 movies)
- Maudie Prickett (1 movie)
- Maureen O'Hara (3 movies)
- Maurice Black (3 movies)
- Maurice Braddell (1 movie)
- Maurice Cass (2 movies)
- Maurice Evans (1 movie)
- Maurice Moscovitch (1 movie)
- Max Bacon (1 movie)
- Max Baer (1 movie)
- Max Barwyn (1 movie)
- Max Manning (1 movie)
- Max Palmer (1 movie)
- Max Showalter (1 movie)
- Max Smith (1 movie)
- Max Terhune (2 movies)
- Maxene Andrews (1 movie)
- Maxie Rosenbloom (1 movie)
- Maxine Jennings (1 movie)
- Maxine Leslie (1 movie)
- May Beatty (2 movies)
- May Boley (1 movie)
- May McAvoy (1 movie)
- May Robson (2 movies)
- Maynard Holmes (1 movie)
- Meg Lemonnier (1 movie)
- Meinhart Maur (1 movie)
- Mel Blanc (1 movie)
- Mel Welles (1 movie)
- Meri Welles (1 movie)
- Merle Oberon (2 movies)
- Merle Travis (1 movie)
- Merrill McCormick (2 movies)
- Merrill Rodin (2 movies)
- Merritt Stone (1 movie)
- Mervin Williams (1 movie)
- Mervyn Johns (1 movie)
- Michael Ansara (1 movie)
- Michael Chapin (1 movie)
- Michael Emmet (1 movie)
- Michael Jeffers (1 movie)
- Michael Learned (1 movie)
- Michael Mark (4 movies)
- Michael O'Shea (1 movie)
- Michael Pate (1 movie)