Roman Polanski averages 7.21 across 8 rated films as an actor, ahead of Renee Houston at 6.83.
Dot size shows IMDb votes. Films with fewer than 1,000 votes sit on the baseline.
| 1965 | 7.5 | Director, Writer | as Miss Balch | |
| 1966 | 7.0 | Director, Writer | as Christopher's Mother |