Guionistas
Guionista
Sylvester Stallone
Actores y actrices
Bill Baldwin
Fight Announcer
Al Silvani
Cut Man
George Memmoli
Ice Rink Attendant
Jodi Letizia
Marie
Diana Lewis
TV Commentator
George O'Hanlon
TV Commentator
Larry Carroll
TV Interviewer
Stan Shaw
Dipper
Don Sherman
Bartender
Billy Sands
Club Fight Announcer
Pedro Lovell
Spider Rico - Club Fighter
DeForest Covan
Apollo's Corner
Simmy Bow
Club Corner Man
Tony Burton
Apollo's Trainer
Hank Rolike
Apollo Corner Man
Shirley O'Hara
Jergens' Secretary
Kathleen Parker
Paulie's Date
Frank Stallone
Singer
Lloyd Kaufman
Drunk
Jane Marla Robbins
Owner of Pet Shop
Jack Hollander
Fats
Joe Sorbello
Buddy, Gazzo's Bodyguard
Christopher Avildsen
Chiptooth
Frankie Van
Club Fight Referee
Lou Fillipo
Championship Fight Announcer
Paris Eagle
Fighter
Robert L. Tangrea
Streetcorner Singer
Peter Glassberg
Streetcorner Singer
William E. Ring
Streetcorner Singer
Joseph C. Giambelluc
Streetcorner Singer
Joe Frazier
Himself
Butkus Stallone
Perro
Banda Sonora
Bill Conti
Compositor
Productores
Gene Kirkwood
Productor ejecutivo
Irwin Winkler
Productor
Robert Chartoff
Productor
Equipo técnico
Michael Westmore
Maquillador
James Crabe
Director de fotografía
Gene Ashbrook
Mezclador de sonido
Caro Jones
Director de reparto
Richard Halsey
Montador
Ted Swanson
Director de producción
James H. Spencer
Director artístico
Steve Perry
Asistente segundo de dirección
William J. Cassidy
Decorador
Fred T. Gallo
Asistente primero de dirección
Robert Cambel
Diseñador de vestuario
Ray Molyneaux
Decorador
Scott Conrad
Montador
Empresas que han participado
United Artists
InternationalDistributionExports
United Artists
Production
Chartoff-Winkler productions
Production
United Artists
Distribution