Vannain is one of Space Empire Zangyack's Action Commanders.
He is an Action Commander who can touch foreheads with another person or thing to assume that other's form. Having kidnapped her friend Cain, Vannain tricks Luka to walk into his trap, knocking her out to assume her form in order to take out her crew.
However, the Gokaigers see through the deception and trick Vannain into believing that he has killed them so they can follow him to Luka. After being blasted by the Gokai Galleon Buster, Vannain tries to overwhelm GokaiOh and Goujyujin with sneak attacks as a building before being crippled by Goujyujin and then destroyed by Hurricane GokaiOh.
Super Hero Taisen
He later appeared as one of the many monsters in the Dai-Zangyack army, which eventually fought against an army of Super Sentai and Kamen Riders. He is briefly seen fighting Battle France of Battle Fever J with Nanonanoda and Isoginjaguar.