It’s been revealed that Game of Thrones actor Miltos Yerolemou was once in the running to play the mysterious big bad in season 4 of The Flash.
When he adopted the mantle of The Thinker, he used scientific devices to fight The Flash, including a “Thinking Cap”, which could project a devastating mental force and make Barry’s super-speed useless.
This all fits perfectly with the portrayal of The Thinker as he’s depicted in the comics.
The Thinker would use this device repeatedly over the years, and it’s sure to make an appearance if he is the big bad in season 4.