Sylvester Stallone
Robert 'Rocky' Balboa
Antonio Tarver
Mason 'The Line' Dixon
Milo Ventimiglia
Robert 'Rocky' Balboa Jr.
Tony Burton
Tony 'Duke' Evers
James Francis Kelly III
Steps
Maureen Schilling
Lucky's Bartender
Woody Paige
ESPN Commentator
Skip Bayless
ESPN Commentator
Jay Crawford
ESPN Commentator
Johnnie Hobbs Jr.
Commissioner
Barney Fitzpatrick
Commissioner
Jim Lampley
HBO Commentator
Larry Merchant
HBO Commentator
Max Kellerman
HBO Commentator
Bert Sugar
Ring Magazine Reporter
Bernardo Fernández
Boxing Association of America Writer
Gunnar Peterson
Weightlifting Trainer
Marc Ratner
Weigh-In Official
Anthony Lato Jr.
Rocky's Inspector
Jack Lazzarado
Dixon's Inspector
Michael Buffer
Ring Announcer
Carter Mitchell
Shamrock Foreman
Fran Pultro
Father at Restaurant
Frank Stallone Jr.
Dinner Patron
Jody Giambelluca
Dinner Patron
Tobias Segal
Robert's Friend
Matt Frack
Robert's Friend #3
Paul Dion Monte
Robert's Friend
Kevin King Templeton
Robert's Friend
Robert Michael Kelly
Mr. Tomilson
Nick Baker
Irish Pub Bartender
Stu Nahan
Computer Fight Commentator (voice)
Gary Compton
Security Guard
David Gere
Patron at Adrian's (uncredited)
Jacob 'Stitch' Duran
Stitch (uncredited)
Talia Shire
Adrianna "Adrian" Balboa (Archive Footage)
Burgess Meredith
Micky Goldmill (Archive Footage)
Angelyna Martinez-Boyd
Angie