Source: insidepulse.com

9. Hawk/Extant

Hawk and Dove, Armageddon 2001, Zero Hour - DC Comics

Okay. This is going to be long and frustrating, so strap in.

Anyway, Hawk was Hank Hall, half of a superhero duo along with his brother Don Hall, aka Dove. When Don died, the Dove identity was passed on to Dawn Granger. And thus, Hawk and Dove were reborn.

In 1991, DC put out the big annual crossover event Armageddon 2001, in which a hero named Waverider went back in time ten years to stop the rise of a hero-turned-supervillain who betrayed everybody and took over the world.

That villain was Monarch, who was supposed to be"¦Captain Atom. Yup. However, this twist leaked to the press way early, and DC panicked. In an attempt to keep the story relevant, they changed the ending, and Monarch became Hawk in spite of all the clues that pointed to Captain Atom. And in spite of the fact that the story directly stated that Hawk wasn't Monarch. Oops.

In damage control mode, DC had the newly evil Hawk/Monarch fight Waverider. They absorbed his time powers, and he became Extant, the time rewriting supervillain. He then died in a plane crash, but one that is infinitely more complicated than you'd assume.