Sylvester Stallone as Robert 'Rocky' Balboa

Burt Young as Paulie Pennino

Antonio Tarver as Mason 'The Line' Dixon

Geraldine Hughes as Marie

Milo Ventimiglia as Robert 'Rocky' Balboa Jr.

Tony Burton as Tony 'Duke' Evers

A.J. Benza as L.C.

James Francis Kelly III as Steps

Lou DiBella as Lou DiBella

Mike Tyson as Mike Tyson

Henry G. Sanders as Martin

Pedro Lovell as Spider Rico

Ana Gerena as Isabel

Louis Giansante as Bar Thug

Maureen Schilling as Lucky's Bartender

Lahmard J. Tate as X-Cell

Woody Paige as ESPN Commentator

Skip Bayless as ESPN Commentator

Jay Crawford as ESPN Commentator

Brian Kenny as ESPN Host

Dana Jacobson as ESPN Host

Charles Johnson as ESPN Host

James Binns as Commissioner

Johnnie Hobbs Jr. as Commissioner

Barney Fitzpatrick as Commissioner

Jim Lampley as HBO Commentator

Larry Merchant as HBO Commentator

Max Kellerman as HBO Commentator

LeRoy Neiman as LeRoy Neiman

Bert Sugar as Ring Magazine Reporter

Bernardo Fernández as Boxing Association of America Writer

Gunnar Peterson as Weightlifting Trainer

Yahya as Dixon's Opponent

Marc Ratner as Weigh-In Official

Anthony Lato Jr. as Rocky's Inspector

Jack Lazzarado as Dixon's Inspector

Michael Buffer as Ring Announcer

Joe Cortez as Referee

Carter Mitchell as Shamrock Foreman

Vinod Kumar as Ravi

Fran Pultro as Father at Restaurant

Frank Stallone Jr. as Dinner Patron

Jody Giambelluca as Dinner Patron

Tobias Segal as Robert's Friend

Tim Carr as Robert's Friend

Matt Frack as Robert's Friend #3

Paul Dion Monte as Robert's Friend

Kevin King Templeton as Robert's Friend

Robert Michael Kelly as Mr. Tomilson

Rick Buchborn as Rocky Fan

Nick Baker as Irish Pub Bartender

Don Sherman as Andy

Stu Nahan as Computer Fight Commentator (voice)

Gary Compton as Security Guard

David Gere as Patron at Adrian's (uncredited)

Jacob 'Stitch' Duran as Stitch (uncredited)

Talia Shire as Adrianna "Adrian" Balboa (Archive Footage) (uncredited)

Burgess Meredith as Micky Goldmill (Archive Footage) (uncredited)

Angelyna Martinez-Boyd as Angie

Jeffrey Mowery as Neighbor (uncredited)