While we’ve seen many classic Spider-Man villains on the screen (Green Goblin, Venom, or Doctor Octopus might ring a bell), longtime comic fans have been patiently waiting for one in particular to rear his dome-shaped head. Often thought to be too silly a character to be adapted from page to film, Mysterio (played by former Spider-Man contender Jake Gyllenhaal) will finally make his debut in the Marvel Cinematic Universe’s latest Spider-Man movie, Far From Home, in theaters July 2nd. But just who is he?