Get ready to meet Supervillains Born From The Actions of Superheroes.
Harvey Dent, once a fiercely dedicated district attorney and an ally of Batman, was committed to cleansing Gotham City of its rampant criminal element.
Ultron was originally created by Hank Pym (or Tony Stark in the Marvel Cinematic Universe) with the intention of developing an advanced artificial intelligence that could assist in the protection of Earth.
Once a respected member of the Green Lantern Corps “Sinestro” even served as a mentor to the newly-inducted Hal Jordan.
Eddie Brock, once a successful journalist, found his life in ruins after Spider-Man debunked a story he had written, exposing a man Eddie incorrectly identified as a serial killer.
Jason Todd, initially the second Robin and sidekick to Batman, met a tragic end at the hands of the Joker.
Baron Mordo was originally a student of the Ancient One, the same mystic mentor who would later train Doctor Stephen Strange.
Hunter Zolomon, better known as Zoom, was initially a friend and ally of Wally West, the Flash. After being paralyzed from the waist down during an attack by Gorilla Grodd, Zolomon asked Wally to use the Cosmic Treadmill to travel back in time and prevent his paralysis.