Spinel

Name: Spinel Affiliation:Admin in Explorers Debut: Episode HZ006 – "The Ancient Poké Ball" Role: Antagonist An admin of the Explorers. A strategist who uses any means necessary to achieve their goals all with the help of his trusty Umbreon, Beheeyem, and Magneton. Personality: Spinel embodies a manipulative and sadistic nature, deriving pleasure from tormenting others. He exhibits little regard for the well-being of his subordinates or adversaries, often resorting to underhanded tactics to achieve his goals. His interactions are characterized by a lack of empathy, and he is quick to abandon situations that do not favor him.

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After the time skip (Mega Voltage arc onward) Affiliations: Explorers (Boss), Exceed (Director) Role: Main antagonist (Mega Voltage arc onward)

(Source: Bulbapedia and Pokémon Japanese official site)