- William Henderson White (1 movie)
- William Hill (1 movie)
- William Hootkins (3 movies)
- William Hope (3 movies)
- William Houston (1 movie)
- William Hurt (8 movies)
- William J. Harrison (1 movie)
- William Jackson Harper (2 movies)
- William James Stiggers Jr. (1 movie)
- William John Banks (1 movie)
- William Johnson (1 movie)
- William Kalaidjian (1 movie)
- William Kircher (3 movies)
- William Lauzon (1 movie)
- William Lawrence Mack (1 movie)
- William Lee Scott (2 movies)
- William M. Patrick (1 movie)
- William MacDonald (1 movie)
- William Magerman (1 movie)
- William Mapother (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 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 (1 movie)
- 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)