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

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

Gerardo Celasco

Carlos Peña

Ken Rudulph

Reporter

Lisa Guerrero

Reporter

Joe Satriani

Self

Simon James

Voos

Bob Costas

Sports Announcer (voice)

Eddie Frierson

Call-In Radio Host (voice)

Joe Provost

Oakland A's Security Guard

John Brantley Cole

Young Jongewaard

Jake Wilson

Sabatini

Keith Middlebrook

Coach Parker

Gary 'G. Thang' Johnson

Jermaine Dye

Ari Zagaris

Jim Mercir

Julie Wagner

Clubhouse Reporter

Ken Colquitt

Clubhouse Reporter

Eric Winzenried

PR Guy

Richard Padilla

Umpire - Game 20

Jack Knight

Umpire - 1984

Joyce Guy

Flight Attendant

Spike Jonze

Alán (uncredited)

Derek Jeter

Himself (archive footage)

Deanna Marks

Player's Wife (uncredited)