We know that The Flash Season 4 features Clifford Devoe, AKA The Thinker, as the big bad. We know that Neil Sandilands from The 100 will play him. And we know that the producers of the series look at the season as the fastest man alive versus the fastest thinker alive, giving us clues that Barry (Grant Gustin) will need to think faster and outsmart his opponent rather than just outrun him.
What we don't know is why the Thinker goes up again Team Flash. According to TVLine's Michael Ausiello, the big bad's motivation is based on something personal that he experienced. Executive producer and showrunner Todd Helbing told him that there is a psychological component to Season 4:
"The Thinker literally is the smartest guy on the planet, so there's a lot of chess pieces that he's moving around simultaneously. As our team is figuring out who he is and what they think the plan is, there's a lot of fun [as we] show the audience information and then have our team catch up to that information or surpass it. It's a big mystery."
After three seasons of The Flash going up against speedsters that were all faster than him, how exactly is he still the fastest man alive? It's nice to see them go a different direction.
The Flash Season 4 premieres October 10th at 8 p.m. on the CW.