IMDb: You got to know Captain Cold's character on "The Flash." What's been your learning curve as to who Leonard Snart is, now that his reality has been turned around?

Wentworth Miller: It's not necessarily change of tone but change of expectation. On "The Flash," Snart was able to show up, do a little dance, add a little spice, and then go home. On "Legends," we're spending a lot more time with him. So, I'm challenged. The writers are challenged to flesh that out in a way that supplements rather than detracts from his coolness, his edge, his mystique.

And I think when Rip Hunter comes to each of us with the invitation to join his merry band, Snart rejects the possibility of being a hero. I think he believes that that is not for him. Because he's walked a certain road, he's committed X number of crimes, so he can't conceive of himself as a hero. But he likes the idea of being a legend [laughs]. So I think that is probably his initial focus. But then, it becomes about, 'Well, can you change? Is redemption possible? Can I wash my hands clean?" That's interesting to explore.

Do you want to make the evolution a slow burn, because he's so fun as is?

For sure. I don't want to see him wearing a pristine white hat, ever. I think Snart is most interesting to play and watch sitting firmly in his shades of gray, and I hope we always maintain that.

How is the dynamic shifting between Cold and Heat Wave? Have you seen it change?

Absolutely. There's really interesting stuff in store for the Mick Rory character — which, of course, I cannot spoil — that upsets the natural balance. It's always been: "Snart's the brains, and Rory is the brawn." And that relationship becomes more important to Snart because Mick is his only ally in this new setup. They're all teammates, but Snart doesn't necessarily play well with others. So, I think he starts to rely on this preexisting relationship quite heavily. So, when that eventually changes, it's destabilizing to Snart.

You created such a great chemistry with Grant Gustin as Barry Allen. Are you finding that with a new scene partner among this cast?

Absolutely, absolutely. What I love about the Flash/Captain Cold relationship is that there's a bit of little brother/big brother, which is fun to explore and meaningful. On this show, there's a lot of tension. There's a lot of butting heads. You've got a bunch of characters, all of whom are leaders in their own ways. They're all alphas in their own way. And now, they're challenged to work together and even take orders from each other.

So, my character having to spar with, naturally spar with, Brandon's character, Arthur's character, it's bringing out certain sides of him. He's having to fight to get what he wants — whereas before, he simply had his way. That's a cool place to live and breathe this character.

How much of a foot do you get to keep in the world of "The Flash" going forward?

I think the invitation is to reoccur on "The Flash." My experience shooting both simultaneously, which I did a couple months ago, was that it's incredibly ambitious, if not impossible. "Legends" is a huge commitment. It requires all of my time and energy when I'm on set. So, to have to split and go into "The Flash" as well, I worry as a performer, because I'm a perfectionist, that I'm spreading myself too thin and won't be able to do my job in the way that I want to. Moving forward, I think my focus will continue to be on "Legends" primarily and "Flash," if I'm able.

But what I also like about this "Legends" set up is that it's meant to be a revolving door. We're meant to have cast members come in and come out. So it's quite possible that I'm not around on "Legends" long term, but I will get to recur not only on "Legends," but on "Flash," if the writers deem that desirable.

Should we expect plot lines with his sister Lisa, the Golden Glider, to continue here?

I don't know. We haven't seen her so far. It would be nice to introduce that dynamic because it speaks to Snart's vulnerable side, where he's kind of soft and warm and nougat-y. That's an interesting place for me to explore alongside with the violence and the menace and the edge and the humor.

Which character in the "Legends" ensemble has you most intrigued?

I think Caity [Lotz] is amazing in her part, and I really respond to the White Canary character. I think Snart is fixated on her for a variety of reasons. First and foremost, she's a badass, and she seems to have a moral code. There's a struggle between her sense of right and wrong, and I think that's something that Snart resonates with quite deeply. And I think, in the world of "Legends," her character does assume a kind of leading role in that she is a fierce warrior, but she's also frequently the voice of reason. And I think characters are going to respond really, really positively to her.

There is a lot of action in the show. What are you enjoying about that element of your job? Is that fun for you?

I do what I can to service what's required. If I think that my 22-year-old stunt double can do it better than I can, then, by all means, after you. I want my character to look like he knows what he's doing. I want him to look badass. That comes first. I'll be honest: Action, special effects ... they're not my immediately go to. I'm in it for the character. I'm in it for the relationships. And that's the beauty of the Greg Berlanti DC comics universe is that both things get serviced: the action and the character. When something happens to these characters, the audience cares.

How deeply have you been able to look at the character of Captain Cold over his nearly six decades of comic book appearances?

I was aware of that. I made a decision early on not to take a look at the comic books. I thought I'd take my cues from the writers. And even then, I've also made room for my own instincts. When the character was introduced in "The Flash" in the first couple of episodes, I respected what was there. I didn't necessarily vibe with it. It felt like that conception of Captain Cold was a classic crime boss — a bit of a throwback. He drives a retro car with big fins, wears a leather jacket, shoots pool. And I'm not really interested in Snart as a throwback. I'm interested in Snart as a "throw-forward." In what ways is he progressed and progressive?

And I'm exploring that in a variety of ways, one of which is his style of dress. Very fashion forward, very edgy. And another is his presentation as a character. There are moments where you're going to find him in a pose that seems maybe stereotypically masculine. There's another moment where you'll find him in a pose that seems stereotypically feminine. I like the fact that he kind of is comfortable with himself no matter what label you might want to apply. He's, in fact, beyond labels perhaps, which is the mark of a progressive man.