Shared credits
John Kellogg averages 6.65, Ruth Roman averages 6.60. Apart that suggests 6.63; together they average 7.10, a lift of +0.47.
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.
| Tomorrow Is Another Day | 1951 | 7.1 | 2,018 | as Dan Monroe | as Cathy Higgins |
| A Knife for the Ladies | 1974 | · | 463 | as Simeon Hollyfield | as Elizabeth Mescal |
