Character Name : Dewey Cox

Original Name : John C. Reilly

Gender : Male

Character Name : Darlene Madison

Original Name : Jenna Fischer

Gender : Female

Character Name : Pa Cox

Original Name : Raymond J. Barry

Gender : Male

Character Name : Edith

Original Name : Kristen Wiig

Gender : Female

Character Name : Sam

Original Name : Tim Meadows

Gender : Male

Character Name : L'Chaim

Original Name : Harold Ramis

Gender : Male

Character Name : Ma Cox

Original Name : Margo Martindale

Gender : Female

Character Name : Theo

Original Name : Chris Parnell

Gender : Male

Character Name : Dave

Original Name : Matt Besser

Gender : Male

Character Name : Awards Show Stage Manager

Original Name : Nat Faxon

Gender : Male

Character Name : Dewey Age 8

Original Name : Conner Rayburn

Gender : Male

Character Name : Nate

Original Name : Chip Hormess

Gender : Male

Character Name : Country Doctor

Original Name : Terrence Beasor

Gender : Male

Character Name : Old Bluesman

Original Name : Honeyboy Edwards

Gender : Male

Character Name : Harmonica Player

Original Name : Gerry Black

Gender : Male

Character Name : Teenage Band

Original Name : Aron Johnson

Gender : Male

Character Name : Teenage Band

Original Name : Jack Donovan Saperstein

Gender : Male

Character Name : Teenage Band

Original Name : Taylor Hubert

Gender : Male

Character Name : Teenage Band

Original Name : Christopher Hurt

Gender : Male

Character Name : MC (Teacher)

Original Name : Matt Price

Gender : Male

Character Name : Man at Talent Show

Original Name : John Maynard

Gender : Male

Character Name : Second Man at Talent Show

Original Name : E.J. Callahan

Gender : Male

Character Name : Preacher

Original Name : Rance Howard

Gender : Male

Character Name : Bobby Shad

Original Name : Craig Robinson

Gender : Male

Character Name : Nightclub Manager

Original Name : Paul Bates

Gender : Male

Character Name : Bad Men Bass Player

Original Name : Patrick Faucette

Gender : Male

Character Name : Mazeltov

Original Name : Phil Rosenthal

Gender : Male

Character Name : Schmendrick

Original Name : Martin Starr

Gender : Male

Character Name : Audience Guy at Nightclub

Original Name : Oscar Dillon

Gender : Male

Character Name : DJ

Original Name : Jack McBrayer

Gender : Male

Character Name : Teen with Pinups

Original Name : Molly C. Quinn

Gender : Female

Character Name : The Big Bopper

Original Name : John Ennis

Gender : Male

Character Name : Buddy Holly

Original Name : Frankie Muniz

Gender : Male

Character Name : Stage Manager

Original Name : Ed Helms

Gender : Male

Character Name : Elvis Presley

Original Name : Jack White

Gender : Male

Character Name : Beth Anne

Original Name : Angela Little

Gender : Female

Character Name : Reefer Girl

Original Name : Odette Annable

Gender : Female

Character Name : Bert

Original Name : Tyler Nilson

Gender : Male

Character Name : Hotel Groupie with Dewey

Original Name : Deanna Brooks

Gender : Male

Character Name : Drug Dealer

Original Name : Ian Roberts

Gender : Male

Character Name : Prison Guard

Original Name : Steve Bannos

Gender : Male

Character Name : Rehab Nurse

Original Name : Willow Geer

Gender : Female

Character Name : Rehab Doctor

Original Name : David Doty

Gender : Male

Character Name : Press Conference Reporter

Original Name : Jack Kehler

Gender : Male

Character Name : The Maharishi

Original Name : Gerry Bednob

Gender : Male

Character Name : Schwartzberg

Original Name : David Krumholtz

Gender : Male

Character Name : Engineer

Original Name : Tim Bagley

Gender : Male

Character Name : Gail the Television Reporter

Original Name : Jane Lynch

Gender : Female

Character Name : Dewdrop

Original Name : Skyler Gisondo

Gender : Male

Character Name : Dewey Rahim

Original Name : Kshitij Pendurkar

Gender : Male

Character Name : Dreidel L'Chaim

Original Name : Simon Helberg

Gender : Male

Character Name : Lil' Nutzzak

Original Name : Jacques Slade

Gender : Male

Character Name : Music Video Girl

Original Name : Danica Rozelle

Gender : Male

Character Name : Cox Kid

Original Name : Lurie Poston

Gender : Male

Character Name : Cox Kid

Original Name : Maggie Mannion

Gender : Male

Character Name : Jackson Browne

Original Name : Jackson Browne

Gender : Male

Character Name : Jewel

Original Name : Jewel

Gender : Female

Character Name : Lyle Lovett

Original Name : Lyle Lovett

Gender : Male

Character Name : Pierced Eyebrow Girl

Original Name : Stacey Scowley

Gender : Female

Character Name : Pierced Lip Girl

Original Name : Ajla Hodžić

Gender : Male

Character Name : Ghostface Killah

Original Name : Ghostface Killah

Gender : Male

Character Name : The Temptations

Original Name : Otis Williams

Gender : Male

Character Name : The Temptations

Original Name : Ron Tyson

Gender : Male

Character Name : The Temptations

Original Name : Terry Weeks

Gender : Male

Character Name : The Temptations

Original Name : Joe Herndon

Gender : Male

Character Name : The Temptations

Original Name : Bruce Williamson

Gender : Male

Character Name : Eddie Vedder

Original Name : Eddie Vedder

Gender : Male

Character Name : Paul McCartney (uncredited)

Original Name : Jack Black

Gender : Male

Character Name : John Lennon (uncredited)

Original Name : Paul Rudd

Gender : Male

Character Name : George Harrison (uncredited)

Original Name : Justin Long

Gender : Male

Character Name : Ringo Starr (uncredited)

Original Name : Jason Schwartzman

Gender : Male

Character Name : The Kid (uncredited)

Original Name : Patrick J. Adams

Gender : Male

Character Name : Edith's Father (uncredited)

Original Name : Clement Blake

Gender : Male

Character Name : Patrick Duffy (uncredited)

Original Name : Patrick Duffy

Gender : Male

Character Name : Morgan Fairchild (uncredited)

Original Name : Morgan Fairchild

Gender : Female

Character Name : Different DJ (uncredited)

Original Name : Paul Feig

Gender : Male

Character Name : LSD Vision (uncredited)

Original Name : Amber Hay

Gender : Female

Character Name : Record Producer (uncredited)

Original Name : John Michael Higgins

Gender : Male

Character Name : Older Nate (uncredited)

Original Name : Jonah Hill

Gender : Male

Character Name : Dewey's Child (uncredited)

Original Name : Neil Ironfield

Gender : Male

Character Name : Cheryl Ladd (uncredited)

Original Name : Cheryl Ladd

Gender : Female

Character Name : Cheryl Tiegs (uncredited)

Original Name : Cheryl Tiegs

Gender : Female

Character Name : 70's African American Woman (uncredited)

Original Name : Serria Tawan

Gender : Female

Character Name : Jerry Garcia (uncredited)

Original Name : Adam Herschman

Gender : Male

Character Name : Officer Clark

Original Name : John D. Crawford

Gender : Male