Christopher Guest averages 6.76 across 14 rated films as an actor, ahead of Michael McKean at 6.08.
Dot size shows IMDb votes. Films with fewer than 1,000 votes sit on the baseline.
 This Is Spinal Tap | 1984 | 7.9 | Composer, as Nigel Tufnel, Writer | Composer, as David St. Hubbins, Writer |
| The Big Picture | 1989 | 6.2 | Director, Writer | Writer, as Emmet Sumner |
 Waiting for Guffman | 1996 | 7.4 | Director, as Corky St. Clair, Composer, Writer | Composer |
 A Mighty Wind | 2003 | 7.2 | as Alan Barrows, Director, Writer | as Jerry Palter |
 Spinal Tap II: The End Continues | 2025 | 6.4 | as Nigel Tufnel, Writer, Producer | Producer, Writer, as David St. Hubbins |
