Clint Eastwood as Frankie Dunn

Hilary Swank as Maggie Fitzgerald

Morgan Freeman as Eddie Scrap-Iron Dupris

Jay Baruchel as Danger Barch

Mike Colter as Big Willie Little

Lucia Rijker as Billie 'The Blue Bear'

Brían F. O'Byrne as Father Horvak

Anthony Mackie as Shawrelle Berry

Margo Martindale as Earline Fitzgerald

Riki Lindhome as Mardell Fitzgerald

Michael Peña as Omar

Benito Martinez as Billie's Manager

Bruce MacVittie as Mickey Mack

David Powledge as Counterman at Diner

Joe D'Angerio as Cut Man

Marcus Chait as J.D. Fitzgerald

Tom McCleister as Lawyer

Erica Grant as Nurse

Naveen as Pakistani

Morgan Eastwood as Little Girl in Truck

Jamison Yang as Paramedic

Dean Familton as Ref #1

Louis Moret as Ref #2

Vincent Foster as Ref #3

Jon D. Schorle II as Ref #4

Marty Sammon as Ref #5

Steven M. Porter as Ref #6

Ray Corona as Ref #7

Ming Lo as Rehab Doctor

Miguel Pérez as Restaurant Owner

Jim Cantafio as Ring Doctor #1

Ted Grossman as Ring Doctor #2

Ned Eisenberg as Sally Mendoza

Marco Rodríguez as Second (at Vegas Fight)

Roy Nugent as Fan in Vegas

Don Familton as Ring Announcer

Mark Thomason as Radio Commentator

Brian T. Finney as Irish Fan #1

Spice Williams-Crosby as Irish Fan #2

Kim Strauss as Irish Fan #3

Rob Maron as Irish Fan #4

Kirsten Berman as Irish Fan #5

Susan Krebs as Rehab Nurse

Sunshine Chantal Parkman as Rehab Nurse #2

Kim Dannenberg as Rehab Nurse #3

Eddie Bates as Rehab Resident

Jimmy Alioto as Las Vegas Fight Fan (uncredited)

Jason Williams as Las Vegas Fight Fan (uncredited)

Nina Avetisova as VIP Girl (uncredited)

Michael Bentt as Boxer (uncredited)

Bruce Gerard Brown Jr. as Boxer (uncredited)

McKay Stewart as Sparring Boxer (uncredited)

Jude Ciccolella as Hogan (uncredited)

Kimberly Estrada as Perez (uncredited)

Sean LoGrasso as Fight Fan (uncredited)

Sean O'Kane as Additional Voices (voice) (uncredited)

Rosine 'Ace' Hatem as Maggie's First Opponent (uncredited)

Bridgett Riley as Maggie's Second Opponent (uncredited)

Boni Yanagisawa as Maggie's Third Opponent (uncredited)

Christina Cox as Maggie's Fourth Opponent (uncredited)

Mimi Lesseos as Billie's Opponent (uncredited)

Jaerin Washington as Jamaican Boxer Cornerman (uncredited)