Ralph Macchio as Daniel LaRusso

Pat Morita as Mr. Miyagi

Elisabeth Shue as Ali Mills

William Zabka as Johnny Lawrence

Martin Kove as John Kreese

Randee Heller as Lucille LaRusso

Ron Thomas as Bobby

Rob Garrison as Tommy

Chad McQueen as Dutch

Tony O'Dell as Jimmy

Israel Juarbe as Freddy

William Bassett as Mr. Mills

Larry B. Scott as Jerry

Juli Fields as Susan

Dana Andersen as Barbara

Frank Burt Avalon as Chucky

Jeff Fishman as Billy

Ken Daly as Chris

Tom Fridley as Alan

Pat E. Johnson as Referee

Bruce Malmuth as Ring Announcer

Darryl Vidal as Karate Semi-Finalist

Frances Bay as Lady with Dog

Christopher Kriesa as Official

Bernie Kuby as Mr. Harris

Joan Lemmo as Restaurant Manager

Helen Siff as Cashier

Larry Drake as Yahoo #1

David Abbott as Yahoo #2

Molly Basler as Cheerleading Coach

Brian Davis as Boy in Bathroom

David De Lange as Waiter

Erik Felix as Karate Student

Peter Jason as Soccer Coach

Todd Lookinland as Chicken Boy

Clarence McGee Jr. as Referee #2

William Norren as Doctor

Sam Scarber as Referee #3

Scott Strader as Eddie

Shannon Wilcox as Mrs. Mills (Ali's Mother) (uncredited)

Sharon Spelman as Mrs. Lawrence (Johnny's Mother) (uncredited)

Andrew Shue as Member of Cobra Kai (uncredited)

Donald DeNoyer as Karate Student (uncredited)

David LeBell as Guy at Halloween Dance (uncredited)

Stan Rodarte as Student at Dance (uncredited)

Monty O'Grady as Club Patron (uncredited)

Robert Strong as Club Patron (uncredited)

Chris Casamassa as Tournament Guest (uncredited)

Charles Gallant as Karate Fan (uncredited)