William C. Thomas averages 6.70 across 1 rated films as a writer, ahead of Daniel Mainwaring at 6.69.
Dot size shows IMDb votes. Films with fewer than 1,000 votes sit on the baseline.
| No Hands on the Clock | 1941 | · | Producer | Writer |
| They Made Me a Killer | 1946 | · | Director, Producer | Writer |
| Big Town After Dark | 1947 | · | Director | Writer |
| The Eagle and the Hawk | 1950 | · | Producer | Writer |
| The Lawless | 1950 | · | Producer | Writer |
| The Last Outpost | 1951 | · | Producer | Writer |
| Those Redheads from Seattle | 1953 | · | Producer | Writer |
