Life made him tough. Love made him strong. Music made him hard.
Following a childhood tragedy, Dewey Cox follows a long and winding road to music stardom. Dewey perseveres through changing musical styles, an addiction to nearly every drug known and bouts of uncontrollable rage.
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
Chip Hormess Nate
Terrence Beasor Country Doctor
Honeyboy Edwards Old Bluesman
Gerry Black Harmonica Player
Aron Johnson Teenage Band
Jack Donovan Saperstein Teenage Band
Taylor Hubert Teenage Band
Christopher Hurt Teenage Band
Matt Price MC (Teacher)
John Maynard Man at Talent Show
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
Oscar Dillon Audience Guy at Nightclub
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
Deanna Brooks Hotel Groupie with Dewey
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
Kshitij Pendurkar Dewey Rahim
Simon Helberg Dreidel L'Chaim
Jacques Slade Lil' Nutzzak
Danica Rozelle Music Video Girl
Lurie Poston Cox Kid
Maggie Mannion Cox Kid
Jackson Browne Jackson Browne
Jewel Jewel
Lyle Lovett Lyle Lovett
Stacey Scowley Pierced Eyebrow Girl
Ajla Hodžić Pierced Lip Girl
Ghostface Killah Ghostface Killah
Otis Williams The Temptations
Ron Tyson The Temptations
Terry Weeks The Temptations
Joe Herndon The Temptations
Bruce Williamson 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)
Neil Ironfield Dewey's Child (uncredited)
Cheryl Ladd Cheryl Ladd (uncredited)
Cheryl Tiegs Cheryl Tiegs (uncredited)
Serria Tawan 70's African American Woman (uncredited)
Adam Herschman Jerry Garcia (uncredited)
John D. Crawford Officer Clark
Jayne Eastwood 70's Girl (uncredited)
- John C. ReillyDewey Cox
- Jenna FischerDarlene Madison
- Raymond J. BarryPa Cox
- Kristen WiigEdith
- Tim MeadowsSam
- Harold RamisL'Chaim
- Margo MartindaleMa Cox
- Chris ParnellTheo
- Matt BesserDave
- Nat FaxonAwards Show Stage Manager
- Conner RayburnDewey Age 8
- Chip HormessNate
- Terrence BeasorCountry Doctor
- Honeyboy EdwardsOld Bluesman
- Gerry BlackHarmonica Player
- Aron JohnsonTeenage Band
- Jack Donovan SapersteinTeenage Band
- Taylor HubertTeenage Band
- Christopher HurtTeenage Band
- Matt PriceMC (Teacher)
- John MaynardMan at Talent Show
- E.J. CallahanSecond Man at Talent Show
- Rance HowardPreacher
- Craig RobinsonBobby Shad
- Paul BatesNightclub Manager
- Patrick FaucetteBad Men Bass Player
- Phil RosenthalMazeltov
- Martin StarrSchmendrick
- Oscar DillonAudience Guy at Nightclub
- Jack McBrayerDJ
- Molly C. QuinnTeen with Pinups
- John EnnisThe Big Bopper
- Frankie MunizBuddy Holly
- Ed HelmsStage Manager
- Jack WhiteElvis Presley
- Angela LittleBeth Anne
- Odette AnnableReefer Girl
- Tyler NilsonBert
- Deanna BrooksHotel Groupie with Dewey
- Ian RobertsDrug Dealer
- Steve BannosPrison Guard
- Willow GeerRehab Nurse
- David DotyRehab Doctor
- Jack KehlerPress Conference Reporter
- Gerry BednobThe Maharishi
- David KrumholtzSchwartzberg
- Tim BagleyEngineer
- Jane LynchGail the Television Reporter
- Skyler GisondoDewdrop
- Kshitij PendurkarDewey Rahim
- Simon HelbergDreidel L'Chaim
- Jacques SladeLil' Nutzzak
- Danica RozelleMusic Video Girl
- Lurie PostonCox Kid
- Maggie MannionCox Kid
- Jackson BrowneJackson Browne
- JewelJewel
- Lyle LovettLyle Lovett
- Stacey ScowleyPierced Eyebrow Girl
- Ajla HodžićPierced Lip Girl
- Ghostface KillahGhostface Killah
- Otis WilliamsThe Temptations
- Ron TysonThe Temptations
- Terry WeeksThe Temptations
- Joe HerndonThe Temptations
- Bruce WilliamsonThe Temptations
- Eddie VedderEddie Vedder
- Jack BlackPaul McCartney (uncredited)
- Paul RuddJohn Lennon (uncredited)
- Justin LongGeorge Harrison (uncredited)
- Jason SchwartzmanRingo Starr (uncredited)
- Patrick J. AdamsThe Kid (uncredited)
- Clement BlakeEdith's Father (uncredited)
- Patrick DuffyPatrick Duffy (uncredited)
- Morgan FairchildMorgan Fairchild (uncredited)
- Paul FeigDifferent DJ (uncredited)
- Amber HayLSD Vision (uncredited)
- John Michael HigginsRecord Producer (uncredited)
- Jonah HillOlder Nate (uncredited)
- Neil IronfieldDewey's Child (uncredited)
- Cheryl LaddCheryl Ladd (uncredited)
- Cheryl TiegsCheryl Tiegs (uncredited)
- Serria Tawan70's African American Woman (uncredited)
- Adam HerschmanJerry Garcia (uncredited)
- John D. CrawfordOfficer Clark
- Jayne Eastwood70's Girl (uncredited)