Please note, the image above is the result of my fan edit/manipulation which is my attempt at making the image have a different look and feel to the original. The original work can be found in the link below.
Debuting in The Amazing Spider-Man #13, Mysterio is Quentin Beck, a special effects wizard and stunt man working for a major Hollywood studio with dreams of making a name for himself in the film industry. However, he came to see his career in special effects as a dead-end job. His attempts to become an actor were poorly received, but he realized that his expertise in illusions could make him an effective supervillain.
In his first battle with Spider-Man, after he frames him for robbing the Midtown Museum, Mysterio obstructs the hero's spider-sense with gas and dissolves his webbing with a chemical abrasive. However Spider-Man tricked him into revealing he robbed the museum, then revealed he had captured it on tape. Mysterio was then jailed, blaming Spider-Man for his ruined career. He later joins the Sinister Six in an attempt at revenge on Spider-Man, and battles him using robots of the X-Men. After this Spider-Man gets a card that enables him to go on to battle Sandman.