Mark Williams averages 6.36 across 7 rated films as an actor, ahead of Simon Callow at 6.23.
Dot size shows IMDb votes. Films with fewer than 1,000 votes sit on the baseline.
| Golden Years | 2016 | 6.2 | as Royston | as Phil |
| Surprised by Oxford | 2023 | 6.1 | as Dr. Sterling | as Professor Nuttham |
