[Sunred]

Hikari Sentai Maskman alumni Issei Hirota who played the role of Akira/Blue Mask and Yarinin Toppa in Sekai Ninjasen Jiraiya is an actual Chinese martial arts practitioner who has trained even prior to Maskman.

He was Japan's representative in the 1991 World Wushu Championships winning first place for swords and overall second place.
He currently coaches people in his personal classes called Shishin Bujutsu Club(Four Symbols Martial Arts Club, Four Symbols here referring to the Azure Dragon, Vermillon Bird, White Tiger, and Black Tortoise).

His skills also shined behind the scenes of Maskman as he helped his suit actor Tsutomu Kitagawa with his Chinese martial arts moves and also advised in the poses for the Maskman team based on his experience.

Kitagawa later used this experience with Hirota for motion capture work for a video game, Dairanger, and also as an advisor for Gekiranger.