With only a few episodes left of The Flash: Season 2, Cisco Ramon is going to be a key figure in the fight to stop Zoom.

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Carlos Valdes got on the phone to discuss what's ahead on The CW superhero series. He opened up about what Cisco's brother's return means in Tuesday's episode, "Rupture," plus teased how Vibe's abilities are integral to the Season 2 finale. Valdes also talked about what will change about Barry Allen in Season 3, and whether we'll ever see a darker Cisco. ( Plus read his thoughts on the reveal of who the Man in the Mask is .)

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Last time we left Cisco and Dante, Cisco had to make the choice to give up Barry's identity to Captain Cold in order to save his brother's life. In spite of all the hostility that exists between these two characters, family's the most important to Cisco. In this episode, that hostility has exacerbated itself and gotten worse because there's so much resentment over the trauma of what happened. Dante, who plays the piano, can't really play the piano again because his hands were frozen and bruised and injured. There's a lot of pain there between these two brothers that prevents them from connecting. That relationship ultimately gets tested yet again by the arrival of Rupture, and these two brothers have to find a way to connect in the wake of this madness.Oh, it's an absolutely terrible idea. It's absolutely inane. I think Cisco feels that way as well. The team -- and Earth-1 in general -- has been backed into a corner. Zoom's crazy, psychotic games have left them with no other options but to try to get Barry's speed back, and ultimately it has to become Barry's choice. Regardless of where members of the team stand on this plan and whether they should follow through, it's Barry's choice to make. He's the hero. It's his body. It's up to him if he wants to take the leap.That's a really good question. I think, yes, naturally Team Flash is always on the defensive. I think this brave new world is still very new, very fresh, and so it makes sense that they would be on the defensive considering all sorts of new and mysterious threats constantly present themselves while metahumans run amok on every Earth. It makes sense that Team Flash is constantly on the defensive. It's a very defensive position, really, to be a world-saver; to fight crime and be a superhero. But I think fans can definitely expect Barry to be on the offense in some capacity in Season 3. That's all I'm going to say.[laughs] It's fun. It's a lot of fun to play this light, very youthful character discovering his powers. What makes that discovery interesting is that there's a lot of fear there. Cisco has no idea where these powers are going to lead him. That's where this pivotal Anakin Skywalker moment came in 218 where he compares himself to Anakin and he says, "I might just go to the dark side. We don't know that." Barry has to be the one to check him and say, "Listen, you've got something that most people don't have, and that's a family." That allows him to come into his own with the powers, to have the confidence to commit to these powers. He's using them for good, and he's a good person. I think fans can definitely expect a lot more of those powers to flourish, and to mature and to develop. They actually end up serving a fundamental purpose in the finale.I can't say for sure. I think obviously in Team Flash's viewpoint and in the audience's viewpoint as well it seems so obvious that Cisco would never be evil. So much of the feedback from the episode was, "Oh Cisco, you could never be evil!" I'm not so sure about that, you know what I mean? Anything can happen in our universe. I think time and time again the crazy physics and sci-fi of our show has shown that anything can happen. I don't pretend to know what's going to happen in the future. All I know is I'm never going to see it coming. [laughs]

The Flash airs Tuesdays at 8 p.m. ET/PT on The CW.Terri Schwartz is Entertainment Editor at IGN. Talk to her on Twitter at @Terri_Schwartz