- William Magerman (1 movie)
- William Mapother (1 movie)
- William Meisle (1 movie)
- William Melling (2 movies)
- William Meredith (3 movies)
- William Morgan Sheppard (2 movies)
- William Morts (2 movies)
- William Myers (1 movie)
- William P. Bradford (1 movie)
- William Patrick Brown (1 movie)
- William Pierce (1 movie)
- William Preston Robertson (1 movie)
- William R. Phillips (1 movie)
- William R. Thompkins (1 movie)
- William Ragsdale (2 movies)
- William Ray Watson (1 movie)
- William Richert (1 movie)
- William Roberts (1 movie)
- William Rossman (1 movie)
- William Russ (1 movie)
- William Sadler (4 movies)
- William Sanderson (2 movies)
- William Scott-Masson (1 movie)
- William Shatner (3 movies)
- William Shimell (1 movie)
- William Shipman (2 movies)
- William Smillie (1 movie)
- William Sterchi (1 movie)
- William Tokarsky (1 movie)
- William Tregoe (1 movie)
- William Truly Jr. (1 movie)
- William Turner (1 movie)
- William W. Barbour (2 movies)
- William Walker (1 movie)
- William Wallace (1 movie)
- William White (1 movie)
- William Wisher Jr. (2 movies)
- William Wollen (1 movie)
- William Xifaras (2 movies)
- William Young (1 movie)
- William Zabka (1 movie)
- William Zappa (1 movie)
- William Zeman (1 movie)
- William-Christopher Stephens (2 movies)
- Willie Burton (1 movie)
- Willie C. Carpenter (1 movie)
- Willie Coppen (1 movie)
- Willie Garson (3 movies)
- Willie Hall (1 movie)
- Willie Hoel (1 movie)