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)

Milanka Stevens
as Club Patron (uncredited)

Nick Stevens
as Club Patron (uncredited)

Robert Strong
as Club Patron (uncredited)

Chris Casamassa
as Tournament Guest (uncredited)

Charles Gallant
as Karate Fan (uncredited)

Katheryn Gallant
as Karate Fan (uncredited)

Kelly Gallant
as Karate Fan (uncredited)

Duff Tallahassee
as Karate Fan #4 (uncredited)

Ann Oshita
as Mrs. Miyagi (uncredited)