This article is about a/an villain in Choudenshi Bioman.

Mason is the leader of the Big Three who once plotted against Doctor Man himself. Armed with a staff which fires bolts. Later rebuilt and armed with Mason Rockets and Mason Machinegun. He was killed by Silver.

Turboranger clipshow

Mason appears in the clips from Choudenshi Bioman seen in the first episode of Kousoku Sentai Turboranger.

Gaoranger vs. Super Sentai

Mason is one of several past Super Sentai villains that appear in clips in the anniversary special Hyakujuu Sentai Gaoranger vs. Super Sentai.

Behind the scenes


Concept Art


Mason is portrayed by Hirohisa Nakata (中田 博久 Nakata Hirohisa), who previously portrayed Great Emperor ZeroIcon-crosswiki in Kamen Rider AmazonIcon-crosswiki.


Community content is available under CC-BY-SA unless otherwise noted.