Matthew Robert Patrick (born November 15, 1986), AKA MatPat, is an American voice actor and online personality. He is best known as the creator of the popular YouTube web-series "Game Theory", analyzing the lore and realism of different elements in video games, along with its offshoots "Film Theory", "Food Theory" and "Style Theory", which he hosted until retiring from YouTube work in 2024.
He once gave the Pope a copy of Undertale.