Johan Quick (born May 11, 1984 in Norrköping, Sweden), who plays with the pseudonym tox, also known as toxjq and toxic, is a professional electronic sports player. Quick is currently signed by Jonathan Wendel's Free Player Organization and was specialized in Quake 4 competitions. During the 2006 season, he was signed to SK Gaming and won four out of five Quake 4 world championships held. He also was ranked #1 in the Global Gaming League World Rankings at the end of the 2006 season.