Gorm is one of the seven sages. He's a reappearing character, Three years prior to the start of the chapter, he is tasked with finding information about the Legendary Pokémon Reshiram and Zekrom so that they may recruit one of them on Team Plasma's side. Zinzolin questioned this decision, as he had already found information on the two Dragon Pokémon, only for Ghetsis to remind Zinzolin that he is the one who decides the sages' roles.

I imagine his voice to be rather high for a senior.