John C. Reilly
Dewey Cox
Jenna Fischer
Darlene Madison
Raymond J. Barry
Pa Cox
Kristen Wiig
Edith
Tim Meadows
Sam
Harold Ramis
L'Chaim
Margo Martindale
Ma Cox
Chris Parnell
Theo
Matt Besser
Dave
Nat Faxon
Awards Show Stage Manager
Conner Rayburn
Dewey Age 8
Gerry Black
Harmonica Player
Jack Donovan Saperstein
Teenage Band
E.J. Callahan
Second Man at Talent Show
Rance Howard
Preacher
Craig Robinson
Bobby Shad
Paul Bates
Nightclub Manager
Patrick Faucette
Bad Men Bass Player
Phil Rosenthal
Mazeltov
Martin Starr
Schmendrick
Jack McBrayer
DJ
Molly C. Quinn
Teen with Pinups
John Ennis
The Big Bopper
Frankie Muniz
Buddy Holly
Ed Helms
Stage Manager
Jack White
Elvis Presley
Angela Little
Beth Anne
Odette Annable
Reefer Girl
Tyler Nilson
Bert
Ian Roberts
Drug Dealer
Steve Bannos
Prison Guard
Willow Geer
Rehab Nurse
David Doty
Rehab Doctor
Jack Kehler
Press Conference Reporter
Gerry Bednob
The Maharishi
David Krumholtz
Schwartzberg
Tim Bagley
Engineer
Jane Lynch
Gail the Television Reporter
Skyler Gisondo
Dewdrop
Simon Helberg
Dreidel L'Chaim
Jackson Browne
Jackson Browne
Jewel
Jewel
Lyle Lovett
Lyle Lovett
Stacey Scowley
Pierced Eyebrow Girl
Ghostface Killah
Ghostface Killah
Otis Williams
The Temptations
Eddie Vedder
Eddie Vedder
Jack Black
Paul McCartney (uncredited)
Paul Rudd
John Lennon (uncredited)
Justin Long
George Harrison (uncredited)
Jason Schwartzman
Ringo Starr (uncredited)
Patrick J. Adams
The Kid (uncredited)
Clement Blake
Edith's Father (uncredited)
Patrick Duffy
Patrick Duffy (uncredited)
Morgan Fairchild
Morgan Fairchild (uncredited)
Paul Feig
Different DJ (uncredited)
Amber Hay
LSD Vision (uncredited)
John Michael Higgins
Record Producer (uncredited)
Jonah Hill
Older Nate (uncredited)
Cheryl Ladd
Cheryl Ladd (uncredited)
Cheryl Tiegs
Cheryl Tiegs (uncredited)
Serria Tawan
70's African American Woman (uncredited)
Adam Herschman
Jerry Garcia (uncredited)
