- Willie Brown (1 movie)
- William-Christopher Stephens (1 movie)
- William Zielinski (1 movie)
- William Zappa (1 movie)
- William Zabka (3 movies)
- William Windom (2 movies)
- William Todd Levinson (1 movie)
- William Thorne (1 movie)
- William Sterchi (2 movies)
- William Smithers (1 movie)
- William Smith (2 movies)
- William Smillie (1 movie)
- William Shatner (3 movies)
- William Severs (2 movies)
- William Scott-Masson (1 movie)
- William Schallert (2 movies)
- William Sanderson (1 movie)
- William Sadler (8 movies)
- William S. Taylor (1 movie)
- William Ruane (1 movie)
- William Robbins (1 movie)
- William Ragsdale (2 movies)
- William R. Phillips (1 movie)
- William Preston Robertson (1 movie)
- William Petersen (2 movies)
- William Peltz (3 movies)
- William O'Malley (1 movie)
- William Nero Jr. (1 movie)
- William Moseley (2 movies)
- William Morse (1 movie)
- William Morgan Sheppard (2 movies)
- William Meredith (1 movie)
- William Melling (4 movies)
- William McInnes (1 movie)
- William McDonald (1 movie)
- William Marquez (1 movie)
- William Mapother (2 movies)
- William Maier (1 movie)
- William Lucking (1 movie)
- William Lightning (1 movie)
- William Lee Scott (1 movie)
- William Lawrence Mack (1 movie)
- William Laverack (1 movie)
- William Kircher (2 movies)
- William Katt (1 movie)
- William Kania (3 movies)
- William Kaffenberger (1 movie)
- William Juan Prieto (2 movies)
- William Jackson Harper (1 movie)
- William Hurt (10 movies)