- Lucien Littlefield (3 movies)
- Lucien Prival (1 movie)
- Lucile Browne (1 movie)
- Lucile Watson (1 movie)
- Lucille Bremer (1 movie)
- Lucille La Verne (1 movie)
- Lucy Beaumont (1 movie)
- Luigi Pistilli (1 movie)
- Luisella Boni (1 movie)
- Luther Adler (1 movie)
- Lyle Latell (2 movies)
- Lyle Moraine (2 movies)
- Lyle Talbot (3 movies)
- Lyn Harding (1 movie)
- Lynn Baggett (1 movie)
- Lynn Bari (1 movie)
- Lynn Cartwright (1 movie)
- Lynn Storey (2 movies)
- Lynne Carter (1 movie)
- Lynne Roberts (1 movie)
- Lynton Brent (1 movie)
- M.J. Frankovich (1 movie)
- Ma Curly (1 movie)
- Mabel Paige (1 movie)
- Mabel Terry-Lewis (1 movie)
- Mac McKim (1 movie)
- Mack Gray (1 movie)
- Mack Swain (1 movie)
- Mack V. Wright (1 movie)
- Mack Williams (1 movie)
- Mackenzie Ward (1 movie)
- Madeleine Carroll (1 movie)
- Madeline Wilson (2 movies)
- Madelon Mitchell (1 movie)
- Madge Bellamy (1 movie)
- Madge Bennett (1 movie)
- Madge Cleveland (1 movie)
- Madge Evans (3 movies)
- Mae Clarke (3 movies)
- Maila Nurmi (1 movie)
- Mala (1 movie)
- Mala Powers (2 movies)
- Malcolm Keen (1 movie)
- Malcolm St. Clair (1 movie)
- Mamie Van Doren (1 movie)
- Manuel (1 movie)
- Mara Griy (1 movie)
- Marc Arian (1 movie)
- Marc Krah (1 movie)
- Marc Lawrence (1 movie)