Source: dc.wikia.com

5. The Brain

THE MOST THREATENING VILLAIN OF ALL TIME, LADIES AND GENTLEMEN.

I actually like The Brain, I think he's been in some fun stories, but as I've said before, any villain who can be defeated with a light shove is probably due for an upgrade.

The Brain was a scientist performing experiments on gorillas to make them smarter. His greatest success was a gorilla he named Monsieur Mallah, who went on to be his partner throughout his criminal career. Then a colleague of his plotted to have the scientist get caught in an explosion, which destroyed his body. Mallah fused his brain with a computer network, and the scientist became The Brain.

Eventually, this became the classic brain-in-an-evil-looking-metal-chess-piece look we all know and love. The Brain went up against the Teen Titans, the Doom Patrol, and even the JLA, before he and Mallah finally announced their love for each other. Yeah, when I said they were partners, I meant they were partners. Now, I'm all in favor of gay marriage and LGBTQ rights, but I feel like human brain in jar on hyper-intelligent gorilla love crosses some kinda line.

But I don't have to worry about that any more because during Salvation Run, Gorilla Grodd picked up The Brain and beat Mallah to death with him. This is equal parts tragic and really funny. They died together, which is"¦sweet? I guess?