Shared credits
John Gregson averages 6.70, Helen Cherry averages 6.43. Apart that suggests 6.57; together they average 6.50, a lift of −0.06.
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.
| Three Cases of Murder | 1954 | 6.5 | 1,315 | as Edgar (segment: You Killed Elizabeth) | as Lady Mountdrago (segment: Lord Mountdrago) |
| Tomorrow at Ten | 1963 | · | 645 | as Detective Inspector Parnell | as Robbie |
