The Flash: Episode 3.21 “Cause and Effect” Promotional Photos

Interview

“What’s really cool for anyone who thought that there wasn’t a plan, or we didn’t know, or we were making this up as we go, this was always where we were heading,” Kreisberg says. “The idea that the darkest villain we could come up with was actually a very damaged version of our hero was interesting and fresh to us. We’re not only competing with all the stuff that we’ve done on Flash, but we’re always competing with everything we’ve done on all the other shows. So to have our lead actor be both the hero and the villain isn’t something we’ve done before, so that was exciting for us as storytellers.”

While upcoming episodes will provide answers, they will also raise an interesting conundrum for the current Barry Allen. “In an upcoming episode, when Barry is talking about Savitar, he says that so many of these bad guys that we’ve fought, I didn’t understand why they were doing what they were doing,” Kreisberg says. “They just seemed to be filled with so much hate and anger and did terrible things, I would look at them and be like, ‘Why are you doing this?’ But when Barry looks at Savitar, he sees it and he kind of understands it.”

Source: EW