Amethio

Amethio is one of the Admins of the mysterious organization Explorers, and a supporting character in Pokémon Horizons: The Series.

Debut: Episode 1 – "The Pendant That Starts It All (Part One)"

Personality:
Initially portrayed as a stoic and determined antagonist, Amethio is unwavering in his mission to retrieve Liko's mysterious pendant, believing it to be crucial to the Explorers' objectives.

(Source: Bulbapedia)