| Ralph Macchio (Daniel LaRusso) |
| Noriyuki 'Pat' Morita (M. Miyagi) |
| Elisabeth Shue (Ali Mills) |
| William Zabka (Johnny Lawrence) |
| Randee Heller (Lucille LaRusso) |
| Martin Kove (John Kreese) |
| Ron Thomas (Bobby Brown) |
| Rob Garrison (Tommy) |
| Chad McQueen (Dutch) |
| Tony O'Dell (Jimmy) |
| Israel Juarbe (Freddy Fernandez) |
| William Bassett (M. Mills) |
| Larry B. Scott (Jerry) |
| Juli Fields (Susan) |
| Dana Andersen (Barbara) |
| Frank Burt Avalon (Chucky) |
| Jeff Fishman (Billy) |
| Ken Daly (Chris) |
| Tom Fridley (Alan) |
| Pat E. Johnson (Un arbitre) |
| Bruce Malmuth (L'annonceur du ring) |
| Darryl Vidal (Un karatéca en demi-finale) |
| Frances Bay (La femme avec le chien) |
| Christopher Kriesa |
| Bernard Kuby (M. Harris) |
| Joan Lemmo |
| Helen J. Siff |
| Larry Drake |
| David Abbott |
| Molly Basler |
| Brian Davis |
| David de Lange (Un serveur) |
| Erik Felix |
| Peter Jason |
| Todd Lookinland |
| Clarence McGee Jr. |
| William Norren (Le docteur) |
| Sam Scarber |
| Scott Strader (Eddie) |
| Bill Baker |
| Chris Casamassa |
| Donald DeNoyer |
| Charles Gallant |
| Katheryn Gallant |
| Kelly Gallant |
| Jeff Lawrence |
| David LeBell |
| Tom Levy |
| Freeman Love (Un serveur) |
| Monty O'Grady |
| Ann Oshita (Mme Miyagi) |
| Richard Patrick |
| Ron Pohnel |
| Stan Rodarte |
| Andrew Shue |
| Sharon Spelman (Mme Lawrence, la mère de Johnny) |
| Milanka Stevens |
| Nico Stevens |
| Robert Strong |
| Duff Tallahassee |
| Shannon Wilcox (Mme Mills) |
| Vinton Wolfe |
| Nancy Zabka |
| Stanley William Zabka |