Russell Crowe
Jim Braddock

Renée Zellweger
Mae Braddock

Paul Giamatti
Joe Gould

Craig Bierko
Max Baer

Paddy Considine
Mike Wilson

Bruce McGill
Jimmy Johnston

David Huband
Ford Bond

Connor Price
Jay Braddock

Ariel Waller
Rosemarie Braddock

Patrick Louis
Howard Braddock

Rosemarie DeWitt
Sara

Linda Kash
Lucille Gould

Nicholas Campbell
Sporty Lewis

Gene Pyrz
Jake

Chuck Shamata
Father Rorick

Ron Canada
Joe Jeanette

Alicia Johnston
Alice

Art Binkowski
Corn Griffin

Matthew G. Taylor
Primo Carnera

Rance Howard
Announcer Al Fazin

James Ritz
Official (Griffin / Baer Fight)

Fulvio Cecere
Referee McAvoy

Clint Howard
Referee

Ken James
Ancil Hoffman

Rufus Crawford
Lewis Coach

Angelo Dundee
Angelo the Cornerman

Wayne Gordon
Braddock Cornerman

Nick Alachiotis
Baer Cornerman / Undercard Boxer (Feldman)

Wayne Bourque
Griffin Cornerman

Paul Ryan
Griffin Cornerman

Stuart Clark
Frankie Campbell

Sergio Di Zio
Young Reporter

Gavin Grazer
Reporter

Boyd Banks
Reporter

Daniel Kash
Reporter

Judah Katz
Reporter

Angelo Tsarouchas
Reporter

Craig Warnock
1928 Fan

Aaron Abrams
1928 Fan

Duff MacDonald
1935 Fan

Gerry Quigley
Quincy

Peter MacNeill
Electric Man

John Healy
Dock Worker

James Kirchner
Dock Worker

Magdalena Alexander
Angry Woman

Nola Augustson
Relief Office Woman

Mark Taylor
George

Sharron Matthews
Lady

Isabella Fink
Church Girl

Beau Starr
Sam

Philip Craig
Radio Commentator

Roman Podhora
Hooverville Cop

Michael Dyson
Hooverville Man

Sam Malkin
Gibson

Tony Munch
Sam Penny

Conrad Bergschneider
Limo Driver

Richard Binsley
Announcer (Griffith)

Ramona Pringle
Flapper Girl

Dominic Cuzzocrea
Junket

Neil Foster
Security Guard

Brian Jagersky
Cop