Jonathan Aryan "Jon" Jafari (born March 24, 1990), best known by his Internet pseudonym JonTron, is an American comedian, Internet personality, and video game critic. He is known for his YouTube webseries JonTron, in which he reviews video games, movies, and television shows of varying genres in a retrospective and comedic manner. Jafari is also known as the co-creator and former co-host of the Let's Play webseries Game Grumps, and for co-creating the video game entertainment website NormalBoots.