The reveal of Harrison Wells as the Reverse Flash has got every fan creating their own theory as to what his big twist in the series will be.

Grant Gustin, actor who plays Barry Allen (The Flash), has recently come out to let everyone know that they're wrong. He claims that he follows all the fan theories on the big news outlets and he has yet to see anyone guess right.

He has however confirmed that there is a twist, in an interview with CBR Gustin states:

"Yes. There's a twist with Harrison Wells and the Reverse-Flash storyline that no journalist has guessed -- I've never seen it online. It's going to I think really surprise everyone. And it's an original twist to the character that doesn't mess up the mythology."

He goes on to say that readers of the comics won't have any extra help as the network has formulated a whole new original plot twist.

He goes on to later talk about how it was working with Mark Hamill as he reprised his role as The Trickster on an episode in the back half of the season.

"It was amazing! It really was. It really was. Everyone grew up watching Star Wars. Everyone. Yes, I grew up watching Star Wars. It was surreal to meet Mark Hamill. He was amazing. He was so excited about being a part of this. He really busted his a**. No part of him just showed up and phoned it in. He delivered a really interesting character. And he's so humble and grounded and easy to talk to."

'The Flash' is beginning to wind down to its final episodes so whatever this big twist Gustin is referring to we'll all get to witness soon.