Sean Schemmel is a Los Angeles based voice actor various Pokémon media, joining the franchise with Season 5 of Pokémon the Series' English dub. He originally left the show after Season 8, when the series was recast, and initially returned in Season 11. He would leave the show again after Season 16, when he moved from New York City to Los Angeles but would return in Season 23 when the show started recording there. For voiceover, Sean is represented by Pegasus Talent, and is best known in the Pokemon franchise as Movie 8 Lucario, and outside the franchise as the current voice of Goku in the Dragon Ball series.
His official Twitter is @SeanSchemmel.