Foe of
Spiderman, master of
special effects. Real name: Quentin
Beck. He wears a glass
dome on his head and always has a cloud of
fog trailing around him. He can fool most anybody with his
holograms,
hallucinogens, robotics, and other devices. Member of the original
Sinister Six. He's another one of those
villians who can't just kill the hero, but have to do it in an artistic fashion.
He first appeared as Mysterio in
Amazing Spider-Man #13, though Quentin Beck was responsible for the fake
alien invasion in
ASM #2.
Thanks Habakkuk for the last sentence