Ewan McGregor as Ed Bloom (young)

Albert Finney as Ed Bloom (senior)

Billy Crudup as Will Bloom

Jessica Lange as Sandra Bloom (senior)

Helena Bonham Carter as Jenny (young & senior) / The Witch

Alison Lohman as Sandra Bloom (young)

Robert Guillaume as Dr. Bennett (senior)

Marion Cotillard as Josephine

Matthew McGrory as Karl the Giant

David Denman as Don Price (age 18-22)

Missi Pyle as Mildred

Loudon Wainwright III as Beamen

Ada Tai as Ping

Arlene Tai as Jing

Steve Buscemi as Norther Winslow

Danny DeVito as Amos Calloway

Deep Roy as Mr. Soggybottom

Perry Walston as Ed Bloom (age 10)

Hailey Anne Nelson as Jenny (age 8)

Grayson Stone as Will Bloom (age 6-8)

R. Keith Harris as Ed's Father

Karla Droege as Ed's Mother

Zac Gardner as Zacky Price (age 10)

John Lowell as Don Price (age 12)

Darrell Vanterpool as Wilbur (age 10)

Miley Cyrus as Ruthie (age 8)

Joseph Humphrey as Little Brave

Morgan Grace Jarrett as Will's Date

Sallie Hedrick as Pretty Girl

Charles McLawhorn as Mayor

Frank Hoyt Taylor as Sharecropper

Savanna James as Little Girl

Billy Redden as Banjo Man

James DeForest Parker as Shotgun Toter

Russell Hodgkinson as Some Farmer

Don Young as Shephard

Jayne Morgan as Townsperson

David Ramsey as Townsperson

Greg Hohn as Townsperson

Zach Hanner as Cashier

George McArthur as Colossus

Jeff Campbell as Jump Leader

Lawrence Sykkmon as Chinese Emcee

Bonnie Johnson as Teller Woman

Howard Houston Jr. as Piano Student

Joanne Pankow as Heavy Set Nurse

Trevor Gagnon as Will's son

Jacob Radford as Kid

Karlos Walkes as Dr. Bennett (young)

Cathy Berry as Lobster Woman

John Fugate as Side Show Barker

Daniel Wallace as Econ Professor

Metz Duites as Ventriloquist

Vincent J. Ybiernas as Asian Officer

Barry C. Harvard as Chicken Plant Operator

Edward Aldag as Municipal Dump Owner

Michael Garnet Stewart as Auctioneer

C. Alan Rawlins Sr. as Pretty Man

Jake Brake as Old Zacky

Bevin Kaye as River Woman

L.C. Holt as Spectre Citizen (uncredited)

Will Thomas as Spectre Citizen (uncredited)