- Maggie Smith (6 movies)
- Maggie Steed (1 movie)
- Maggie Wade Dixon (1 movie)
- Maggy Myers Davidson (1 movie)
- Magnus Aasheim (1 movie)
- Magnus Dugdale (2 movies)
- Magnus Juhl Andersen (1 movie)
- Magnus Lund (1 movie)
- Magnus Millang (1 movie)
- Magnus Sundberg (1 movie)
- Mahada Sanders (1 movie)
- Mahershala Ali (4 movies)
- Mahesh Jadu (1 movie)
- Mahjoub (1 movie)
- Mai Hongmei (1 movie)
- Mai-Lis Kuniholm (1 movie)
- Maia Brewton (1 movie)
- Maia Moss-Fife (1 movie)
- Maia Wilson (2 movies)
- Maida Severn (1 movie)
- Maika Monroe (3 movies)
- Maila Nurmi (1 movie)
- Mairead Armstrong (1 movie)
- Mairead McKinley (1 movie)
- Mairi McHaffie (1 movie)
- Maisie Richardson-Sellers (1 movie)
- Maisy De Freitas (1 movie)
- Maïwenn (2 movies)
- Maiya Boyd (3 movies)
- Maiya Leeke (1 movie)
- Maj Britt Andersen (1 movie)
- Maja Kin (1 movie)
- Maja Kljun (1 movie)
- Maja Ostaszewska (1 movie)
- Maja Rung (1 movie)
- Majandra Delfino (1 movie)
- Majel Barrett (2 movies)
- Major Dodson (1 movie)
- Mak Wilson (1 movie)
- Makambe Simamba (1 movie)
- Makena Joy (1 movie)
- Makenzie Vega Norfolk (1 movie)
- Makiko Konishi (1 movie)
- Mal Whyte (1 movie)
- Malachi Throne (1 movie)
- Malachy McCourt (1 movie)
- Malaiyka Reid (1 movie)
- Malaya Rivera Drew (1 movie)
- Malcolm C. Murray (1 movie)
- Malcolm Danare (1 movie)