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