Matthew Robert Patrick, also known by his screen name MatPat, is an American internet personality, the creator and narrator of the YouTube webseries Game Theory, where he comments on topics such as the logic, scientific accuracy, and lore of various video games and the gaming industry. His spinoff Film Theory centers on cinema and internet filmography.

Stephanie Patrick is the owner of Theorist Media, a digital production studio and digital consultancy operating The Game Theorists, GTLive, and the Film Theorists YouTube properties, channels currently reaching 16+ million subscribers and consistently ranked in the top 100 fastest-growing on YouTube. The Game Theorists is in the top 20 YouTube gaming channels with 1B+ total views and GTLive is YouTube’s largest regular livestreaming channel.