A man dubbed "Karate Kid" is imprisoned and forced to fight for his life in an underground fighting ring.
| Actor | Role |
|---|---|
 Daisuke NagakuraJin The Karate Kid | Jin The Karate Kid |
 Megumi TakayamaKaoru | Kaoru |
 Yoshika MaedomariCrusher | Crusher |
 Hisao MakiTeacher Omoto | Teacher Omoto |
| CChika MatsuiMatilda/Okinawa Leopardess | Matilda/Okinawa Leopardess |
| EEisaku ShindoUnderground Promoter | Underground Promoter |
 Noriyo ToyodaHeel Wrestler | Heel Wrestler |
 Atsushi Ônitaas himself | as himself |
| WWayne JonesFighter | Fighter |
| JJohn HolleyFighter | Fighter |
| SSol TruehillJane Tank | Jane Tank |