Shared credits
Sid Haig averages 5.28, Roberta Collins averages 5.12. Apart that suggests 5.20; together they average 5.15, a lift of −0.05.
Lift is the average of their films together minus the mean of their two career averages.
Dot size shows IMDb votes; lines are rolling five-film averages. Films with fewer than 1,000 votes are left out.
| The Big Doll House | 1971 | 5.8 | 3,563 | as Harry | as Alcott |
| Wonder Women | 1973 | 4.5 | 1,240 | as Gregorious | as Laura |
