The Flash: 10 Best Villains (so Far)
4. Grodd
Of all the villains Team Flash has encountered over the last two years, perhaps none are as tragic as Grodd. After being experimented on and tortured by General Eiling, the gorilla went on to be hit by the particle accelerator blast, gaining psychic powers in the process, only to be used and manipulated by the Reverse-Flash throughout season one.
While Grodd returned in season two attempting to find a way to create more gorillas like him, Team Flash ultimately - and forcibly - exiled him to Earth-2, where he was last seen arriving at a gorilla sanctuary to live out his days.
Undoubtedly, though, the team hasn't seen the last of him, and the idea of seeing an even smarter, more powerful Grodd ready to take on humanity is an exciting one for the show's future.