Brad Pitt
Billy Beane
Jonah Hill
Peter Brand
Philip Seymour Hoffman
Art Howe
Robin Wright
Sharon
Chris Pratt
Scott Hatteberg
Stephen Bishop
David Justice
Reed Diamond
Mark Shapiro
Brent Jennings
Ron Washington
Ken Medlock
Grady Fuson
Tammy Blanchard
Elizabeth Hatteberg
Jack McGee
John Poloni
Vyto Ruginis
Pittaro
Nick Searcy
Matt Keough
Glenn Morshower
Ron Hopkins
Casey Bond
Chad Bradford
Nick Porrazzo
Jeremy Giambi
Kerris Dorsey
Casey Beane
Arliss Howard
John Henry
Reed Thompson
Young Billy
James Shanklin
Billy's Dad
Diane Behrens
Billy's Mom
Takayo Fischer
Suzanne - Billy's Secretary
Derrin Ebert
Mike Magnante
Miguel Mendoza
Ricardo Rincon
Gerardo Celasco
Carlos Peña
Tom Gamboa
Scout Martinez
Barry Moss
Scout Barry
Artie Harris
Scout Artie
Bob Bishop
Scout Bob
George Vranau
Scout George
Phil Pote
Scout Pote
Art Ortiz
Eric Chavez
Royce Clayton
Miguel Tejada
Marvin Horn
Terrence Long
Brent Dohling
Mark Ellis
Ken Rudulph
Reporter
Lisa Guerrero
Reporter
Christopher Dehau Lee
Eric Kubota
Joe Satriani
Self
Simon James
Voos
Greg Papa
Game Announcer (voice)
Bob Costas
Sports Announcer (voice)
Tim McCarver
Sports Announcer (voice)
Eddie Frierson
Call-In Radio Host (voice)
Glen Kuiper
Oakland A's Announcer (voice)
Joe Provost
Oakland A's Security Guard
John Brantley Cole
Young Jongewaard
Jake Wilson
Sabatini
Robert P. Macaluso
Coach Bob
Keith Middlebrook
Coach Parker
Damon Farmar
Shapiro's Advisor
Michael Gillespie
Ken Macha
Chad Kreuter
Rick Peterson
Blake Pike
John
Robert Ninfo
Eric Byrnes
Gary 'G. Thang' Johnson
Jermaine Dye
Corey Vanderhook
Ramon Hernandez
Melvin Perdue
Ray Durham
Ari Zagaris
Jim Mercir
Jon Stein
Seymour
Madeleine G. Hall
Hattebergs' Daughter
Holly Pitrago
Shapiro's Assistant
Ken Korach
Radio Color Commentator (voice)
Julie Wagner
Clubhouse Reporter
Ken Colquitt
Clubhouse Reporter
Eric Winzenried
PR Guy
Richard Padilla
Umpire - Game 20
Ed Montague
Umpire - Indians
Jack Knight
Umpire - 1984
Patrick Riley
Umpire - 1989
Phil Benson
1st Base Umpire
Joyce Guy
Flight Attendant
George Thomas
Security Guard #2
Spike Jonze
Alán (uncredited)
Derek Jeter
Himself (archive footage)
Deanna Marks
Player's Wife (uncredited)
Bobby Kotick
Stephen Schott