Chris Guerrero is an American voice actor working for FUNimation Entertainment/Crunchyroll, Sound Cadence Studios, OkraTron 5000 and NYAV Post. He is best known for voicing Momonga/Ains Ooal Gown in Overlord, Gecko Moria in One Piece, Marcus Pietoras in Thermae Romae, Albert James Moriarty in Moriarty the Patriot, Maiharu Gansoku in Golden Kamuy and Impey Barbicane in Code:Realize ~Guardian of Rebirth~.