Percival de Rolo III is a fictional character from the popular web series Critical Role, created by the voice actor and game designer Matthew Mercer. He is a member of the Mighty Nein, a group of adventurers in the campaign set in the world of Exandria. Percival is known for his intelligence, inventiveness, and proficiency with firearms. Percival hails from the noble family of de Rolo in the city of Whitestone. He is characterized by his desire to reclaim his family's honor and legacy, often using his skills in alchemy and engineering to create unique weapons and gadgets. His backstory includes themes of loss, redemption, and the struggle against dark forces.