Charon is one of the admins of Team Galactic as well as their leading scientist, only appearing in Pokémon Platinum Version. When
Cyrus disappeared into the Distortion World, he became Team Galactic's new leader, and sought to capture Heatran from Stark Mountain using the Magma Stone. However, he was arrested by
Looker, disbanding the last of Team Galactic.
Charon was the initial person to discover Rotom, and figure out how it can go through different appliances. He may be a descendant of
Choy, but this has not been confirmed.
Pokémon the Series
He was first seen at the Team Galactic base but didn't play a large role until later in the series when he was trying to find the ruins in Mt. Coronet.