Tadashi Yamashita (played by Tadashi Yamashita) is a protagonist in The Karate 3.
Blinded world champion who trains relentlessly to defeat global martial arts rivals. Mihira (played by Shingo Yamashiro) appears in The Karate 3.
Supporting martial arts figure in the Karate trilogy, involved in dojo politics and tournament events. Shinobu (played by Yoko Horikoshi) appears in The Karate 3.
Fellow competitor and ally in the third installment, assisting Tadashi against foreign threats. Masafumi Suzuki (played by Masafumi Suzuki) appears in The Karate 3.
Numakura (played by Seizō Fukumoto) appears in The Karate 3.
Japanese karate school representative opposing Chinese influence in the third film. Karasaki (played by Eizō Kitamura) appears in The Karate 3.
Traditional dojo master defending Japanese karate traditions against foreign masters. Kaji (played by Ryuji Katagiri) appears in The Karate 3.
Competitor aiming to dethrone the world champion in the trilogy finale. Yusaku Tsumura (played by Kinji Nakamura) appears in The Karate 3.
Martial artist participating in the final tournament to test Tadashi's restored vision.