The Flash's Tom Cavanagh On the Role of the Speed Force

Fans who are wondering just when we would start to hear about the Speed Force on The Flash are in for a treat: it's definitely coming, and it sound like we'll hear plenty about it by the end of the season, as Barry Allen and Harrison Wells/Eobard Thawne struggle to control it.

That's according to Tom Cavanagh, who plays the Reverse Flash on the hit show.

"If you know the Speed Force, it's fair to say that Barry's abilities come from a positive culling of the Speed Force," Cavanagh told Entertainment Weekly. "Reverse Flash's abilities come from what Barry would call a negative culling of the Speed Force. Truthfully, the Speed Force is important to both of them accomplishing their goals and the Speed Force doesn't separate. As they fight towards what they really want — or think they want — they are going to have to take advantage of that Speed Force. I say, 'think they want,' because if you're familiar with the mythology, what Barry needs and what Barry thinks he wants aren't always the same thing."

Of course, that last bit of the quote sounds a lot like a reference to Flashpoint, a story in which Barry traveled back in time to save his mother from being murdered by the Reverse Flash, only to discover that doing so did massive damage to the timestream and made the world a much worse place.

The Flash airs Tuesdays at 8 p.m. ET/PT on The CW.