Christopher Guest
Role: Corky St. Clair
Eugene Levy
Role: Dr. Allan Pearl
Fred Willard
Role: Ron Albertson
Catherine O'Hara
Role: Sheila Albertson
Michael Hitchcock
Role: Steve Stark - Councilman
Larry Miller
Role: Glenn Welsch - Mayor
Parker Posey
Role: Libby Mae Brown
Bob Balaban
Role: Lloyd Miller
Don Lake
Role: Phil Burgess - Blaine Historian
David Cross
Role: UFO Expert
Paul Dooley
Role: UFO Abductee
Lewis Arquette
Role: Clifford Wooley
Matt Keeslar
Role: Johnny Savage
Brian Doyle-Murray
Role: Red Savage
Paul Benedict
Role: Not Guffman
Deborah Theaker
Role: Gwen Fabin-Blunt - Councilwoman
Margaret Bowman
Role: Costume designer
Scott Williamson
Role: Tucker Livingston - Councilman
Linda Kash
Role: Mrs. Allan Pearl
James McQueen
Role: Singing Auditioner
Turk Pipkin
Role: Ping Pong Ball Juggler
Jerry Turman
Role: Raging Bull Auditioner
Miriam Flynn
Role: Costume Dresser
Jill Parker-Jones
Role: Stage Manager
Jean Fuller
Role: Blaine Community Orchestra - Piano
Paul Robertson
Role: Blaine Community Orchestra - Violin
Richard Macdowell
Role: Blaine Community Orchestra - Clarinet
Johnny Reno
Role: Blaine Community Orchestra - Saxophone
Tracy Rosenkrans
Role: Blaine Community Orchestra - Bass
CJ Vanston
Role: Blaine Community Orchestra - Trumpet, Timpani, Glockenspiel
Tony Edwards
Role: Blaine Community Orchestra - Drums, Percussion
Lou Christie
Role: Lightning Strikes Auditioner (uncredited)
James Douglas
Role: Theater Attendant (uncredited)
Daniel Fahey
Role: Dental Patient (uncredited)
Shane Felux
Role: Dairy Queen Worker / Crowd (uncredited)
Joseph T. Garrity
Role: TV Commercial Director (uncredited)
Kathy Lamkin
Role: Beautiful Dreamer Auditioner (uncredited)
Bob Odenkirk
Role: Caped Man at Auditions (uncredited)