Sylvester Stallone
Robert 'Rocky' Balboa
Talia Shire
Adrianna 'Adrian' Pennino
Burt Young
Paulie Pennino
Carl Weathers
Apollo Creed
Burgess Meredith
Mickey Goldmill
Thayer David
George 'Miles' Jergens
Joe Spinell
Tony Gazzo
Jimmy Gambina
Mike
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
Club Fighter
DeForest Covan
Apollo's Corner
Simmy Bow
Club Corner Man
Tony Burton
Tony "Duke" Evers
Hank Rolike
Apollo Corner Man
Shirley O'Hara
Secretary
Kathleen Parker
Paulie's Date
Frank Stallone Jr.
Streetcorner Singer
Lloyd Kaufman
Drunk
Jane Marla Robbins
Owner of Pet Shop
Jack Hollander
Fats
Joe Sorbello
Bodyguard
Christopher Avildsen
Chiptooth
Frankie Van
Club Fight Referee
Lou Fillipo
Championship Fight Announcer
Paris Eagle
Fighter
Frank Stallone Sr.
Timekeeper
Robert L. Tangrea
Streetcorner Singer
Peter Glassberg
Streetcorner Singer
William E. Ring
Streetcorner Singer
Joseph C. Giambelluc
Streetcorner Singer
Joe Frazier
Himself
Michael Dorn
Apollo Creed's Bodyguard (uncredited)
Arnold Johnson
Spectator (uncredited)
Stu Nahan
Fight Commentator (uncredited)
Frank Pesce
Spectator (uncredited)
Lavelle Roby
Mary Anne Creed (uncredited)
Arthur Tovey
Reporter (uncredited)
John Pleshette
Aftershave Commercial Director (uncredited)