Mac Gargan, better known as Scorpion, is a Marvel Comics villain and a longtime enemy of Spider-Man. Gargan was once a private investigator hired by J. Jonah Jameson to investigate Spider-Man's secret identity. In an effort to take down the wall-crawler, Jameson financed an experiment that bonded Gargan with an exoskeleton and the DNA of a scorpion, granting him incredible strength, speed, and agility, as well as a venomous tail.

As Scorpion, Gargan has been a persistent threat to Spider-Man, often using his powers and superior physical abilities to gain an advantage in their battles. He has also been involved in various criminal enterprises over the years, sometimes working with other villains such as the Sinister Six.

Despite his reputation as a ruthless villain, Gargan has occasionally been portrayed as having a more sympathetic side. In one storyline, he is cured of his Scorpion powers but struggles to adapt to life without them, leading him to become depressed and contemplate suicide. Gargan has also been shown to have a soft spot for animals, particularly his pet tarantula.

Scorpion has appeared in various forms of media outside of the comics, including the 1990s Spider-Man animated series, the 2017 film Spider-Man: Homecoming, and the 2018 video game Marvel's Spider-Man.