Quentin Beck was a former employee at Stark Industries who became embittered when Tony Stark stole credit for his holographic technology before firing him. Seeking his retribution, Beck joined forces with other bitter ex-Stark employees to act as a new superhero named Mysterio. Knowing that he needed to create world threatening events to "save" the world from, Beck used weaponized drones and his holographic technology to create an illusion of having superpowers to fight his Elemental illusions, claiming to come from another world in the Multiverse. Mysterio had then gained the trust of Nick Fury in order to get closer to Spider-Man, as he knew that Stark had gifted Spider-Man with access to the Stark technology he needed. However, when Spider-Man discovered Mysterio's deception, he defeated Beck in London, with Beck's overconfidence resulting in his own death. However, in the moments before his demise, Beck managed to record a falsified confession that incriminated Spider-Man for the Elemental attacks and exposed the webslinger's true identity to the world, setting off a chain of events involving the real Multiverse that led to Parker's existence to be forgotten by everyone.