Who Trained Jason David Frank?

Zordon helped, and nobody's saying he didn't.

Before that, though, Jason David Frank spent his childhood fascinated by martial arts. Per Rising Sun Karate School, the dojo that Frank helped found, Frank started training at four years old. Training under Shihan Louis D. Casamassa, he received his first black belt when he was twelve years old, and apparently owned the studio where he trained by the time he was 18. Other practitioners that he lists as training partners include "Sensei Chris Casamassa, Kyoshi Rick Herbster, Kyoshi Steve la Valle, Benny 'The Jet' Urquidez, Stan Ward, and (...) world-renowned Muay Thai trainer Grand Master Toddy."

At 21, Jason started developing his own fighting system dubbed Toso Kune Do, or "Way of the Fighting Fist," a mixed martial arts style which he continues to teach to this day ... when he isn't heeding the call to defend time, space, the Command Center, or the traumatized citizens of Angel Grove from monster attacks.