 | Clint Eastwood als Frankie Dunn |
 | Hilary Swank als Maggie Fitzgerald |
 | Morgan Freeman als Eddie 'Scrap-Iron' Dupris |
 | Jay Baruchel als Danger Barch |
 | Mike Colter als Big Willie Little |
 | Lucia Rijker als Billie 'The Blue Bear' |
 | Brían F. O'Byrne als Father Horvak |
 | Anthony Mackie als Shawrelle Berry |
 | Margo Martindale als Earline Fitzgerald |
 | Riki Lindhome als Mardell Fitzgerald |
 | Michael Peña als Omar |
 | Benito Martinez als Billie's Manager |
 | Bruce MacVittie als Mickey Mack |
 | David Powledge als Counterman at Diner |
 | Joe D'Angerio als Cut Man |
 | Marcus Chait als J.D. Fitzgerald |
 | Tom McCleister als Lawyer |
| Erica Grant als Nurse |
| Naveen als Pakistani |
| Morgan Eastwood als Little Girl in Truck |
 | Jamison Yang als Paramedic |
 | Susan Krebs als Rehab Nurse |
 | Vincent Foster als Ref #3 |
 | Steven M. Porter als Ref #6 |
 | Ming Lo als Rehab Doctor |
 | Miguel Pérez als Restaurant Owner |
| Jim Cantafio als Ring Doctor |
 | Ted Grossman als Ring Doctor |
 | Ned Eisenberg als Sally Mendoza |
 | Marco Rodríguez als Second at Vegas Fight |
| Mark Thomason als Radio Commentator |
 | Brian T. Finney als Irish Fan |
 | Spice Williams-Crosby als Irish Fan |
 | Kim Strauss als Irish Fan |
| Kirsten Berman als Irish Fan |
| Jimmy Alioto als Las Vegas Fight Fan (uncredited) |
 | Jason Williams als Las Vegas Fight Fan (uncredited) |
| Nina Avetisova als VIP Girl (uncredited) |
| Michael Bentt als Boxer (uncredited) |
 | Bruce Gerard Brown Jr. als Boxer (uncredited) |
 | McKay Stewart als Sparring Boxer (uncredited) |
 | Jude Ciccolella als Hogan (uncredited) |
 | Kimberly Estrada als Perez (uncredited) |
| Sean LoGrasso als Fight Fan (uncredited) |
| Maher McClung als Irish Fan (uncredited) |
| Sean O'Kane als Additional Voices (voice) (uncredited) |
| Vladimir Rajčić als Yugoslavian Judge (uncredited) |
| Marty Sammon als Ref #5 |
| Robert Maron als Irish Fan #4 |
 | Rosine 'Ace' Hatem als Maggie's First Opponent (uncredited) |
 | Boni Yanagisawa als Maggie's Third Opponent (uncredited) |
 | Christina Cox als Maggie's Fourth Opponent (uncredited) |
 | Mimi Lesseos als Billie's Opponent (uncredited) |
| Bridgett Riley als Maggie's Second Opponent (uncredited) |
| Phyllis Huffman | Casting |
| Deborah Hopper | Costume Design |
| Clint Eastwood | Original Music Composer |
| Paul Haggis | Producer |
| Albert S. Ruddy | Producer |
| Tom Rosenberg | Producer |
| Paul Haggis | Screenplay |
| Bub Asman | Sound Editor |
| Joel Cox | Editor |
| Clint Eastwood | Director |
| Henry Bumstead | Production Design |
| Clint Eastwood | Producer |
| Tom Stern | Director of Photography |
| Jack G. Taylor Jr. | Art Direction |
| David Potaux-Razel | Additional Soundtrack |
| Bobby Moresco | Co-Producer |
| Robert Lorenz | Executive Producer |
| Gary Lucchesi | Executive Producer |
| F.X. Toole | Story |
| Darin McCormick-Millett | Digital Producer |
| Richard C. Goddard | Set Decoration |
| Stephen S. Campanelli | Camera Operator |
| Mimi Lesseos | Stunts |
| Gary D. Roach | First Assistant Editor |
| Terry Kramer | Electrician |
| Nancy Hancock | Makeup Artist |
| Steve Riley | Special Effects Coordinator |
| Buddy Van Horn | Stunt Coordinator |
| Kurt Smith | Color Timer |
| Deena Adair | Hairstylist |
| Tim Moore | Unit Production Manager |
| Liz Radley | Visual Effects |
| James D. Tittle | Visual Effects Coordinator |
| Michael Cipriano | Assistant Editor |
| Mark Thomason | Stand In |
| Robert Lorenz | Assistant Director |
| Mable Lawson-McCrary | Script Supervisor |
| Bill Coe | First Assistant Camera |
| Michael Muscarella | Construction Coordinator |
| Lynda Foote | Costume Supervisor |
| James R. Lord | Carpenter |
| Juno J. Ellis | ADR & Dubbing |
| Donald Harris | Music Editor |
| David Grimaldi | Sound Effects Editor |
| Brian Bilson | Set Dressing Artist |
| Paulina Quaranta | Production Office Assistant |
| Robert Aaron Brown | Driver |
| William Cawley | First Assistant Sound Editor |
| John Schacht | Leadman |
| Stephen S. Campanelli | Steadicam Operator |
| Karen Shaw | Production Coordinator |
| Dillin Craig | Transportation Co-Captain |
| Jonathan Fuh | Boom Operator |
| Charles Saldaña | Grip |
| Kyle Eastwood | Additional Music |
| Michael Sexton | Property Master |
| Sean Higgins | Rigging Gaffer |
| T. Daniel Scaringi | Rigging Grip |
| Jason S. Gondek | Production Accountant |
| Robert Silcock | Propmaker |
| Lennie Niehaus | Orchestrator |
| Pam Cartmel | Art Department Coordinator |
| Merie Weismiller Wallace | Still Photographer |
| Carol A. O'Connell | Key Hair Stylist |
| Ann Culotta | Set Costumer |
| Judith M. Brown | Studio Teachers |
| Nancy G. James | Craft Service |
| Keith Dillin | Transportation Coordinator |
| Walt Martin | Sound Mixer |
| Gary A. Lee | Set Designer |
| Scooter Perrotta | Set Production Assistant |
| Charles Ramirez | Transportation Captain |
| John Lacy | Assistant Chief Lighting Technician |
| Thomas J. O'Connell | ADR Mixer |
| Geoffrey Miclat | Casting Assistant |
| Katie Carroll | Second Second Assistant Director |
| Ante Dugandzic | Special Effects Technician |
| Trevor Carroll-Coe | Camera Loader |
| Bobby McMahan | Second Assistant Camera |
| William A. Barry III | Swing |
| John T. Cucci | Foley Artist |
| Lucy Coldsnow-Smith | Supervising Dialogue Editor |
| Mo Henry | Negative Cutter |
| Rose Mesa | Assistant Accountant |
| Ross Dunkerley | Chief Lighting Technician |
| James D. Wickman | Dolly Grip |
| Don Dinkins | Technical Advisor |
| James Ashwill | Foley Mixer |
| Nicholas Korda | Supervising ADR Editor |
| Doug Wall | Best Boy Grip |
| Lucy Ramirez-Ewart | Production Assistant |
| Elisa Ann Conant | Assistant Location Manager |
| Nicholas Korda | ADR Editor |
| Brian Magerkurth | Sound Mix Technician |
| Lennie Niehaus | Conductor |
| Tony Hobbs | Extras Casting |
| Ryan Craig | Additional Second Assistant Director |
| Donald Murphy | Second Assistant Director |
| Scott M. Anderson | Assistant Property Master |
| Christine Fegley | Set Painter |
| Matthew A. Del Ruth | Assistant Camera |
| Gloria D'Alessandro | Dialogue Editor |
| Susan Hartmann | Assistant Production Coordinator |
| Rosine 'Ace' Hatem | Stunts |
| Erin Carufel | Stunt Double |
