Supergirl, The Flash, Arrow, and Legends Cast Tease Invasion! Crossover

After an early preview last night on Supergirl, today marks the official start of "Invasion!," the four-part crossover that kicks off in the final moments of Supergirl episode and then runs over three full nights of The Flash, Arrow, and DC's Legends of Tomorrow.

During the course of the Arrow hundredth episode party and a visit to the sets of all four of the DC/CW shows in the last month or so, ComicBook.com had a chance to talk with a numerous members of the cast and crew of the Arrowverse about what to expect from their roles in the event.

Here's what we came away with:

"I'm surprised we were able to do it and that we actually did it," DC's Legends of Tomorrow star Caity Lotz said. "I had a lot of fun going back to Arrow; that was pretty cool, doing scenes with people I haven't done scenes with for al one time. It's a really interesting premise, as well. You get a lot of that nostalgic feeling for everything and it's got some good pulling on the heartstrings. I wish there was more time, because there's so many characters. My character has never met Iris West and there's a scene where they're in the same room, but you don't really get to have that interaction that much."

"I can't speak on that, but what I can say is that Wild Dog will be in the crossover, and he has a huge dislike for metahumans," Rick Gonzalez, who plays Wild Dog on Arrow, told us. "So we'll definitely see him not exactly rub well with The Flash and Supergirl and that's just another glimpse into his psyche and his ideas and thinking about the world and the idea that there are people out there who have these sort of powers and who they are. Instead of saying 'Wow, these people can do these things,' he says, 'no, I don't like you because this is what you bring to the table. This is what you represent to me.'"

"It is [a crazy time] for everyone, but within the chaos, I think we all feel good about it," said Supergirl star Melissa Benoist. "When else do you get to do something like that? Crossing over with not just one show but three shows? I think logistically, it's kind of an impossible feat that we somehow just did in terms of scheduling and getting these humungous group scenes where there's three other shows still shooting and yet everyone has to be on one show. I think Caity Lotz was saying that she had a scene that wasn't her — that she couldn't be there for. At the same time, it's so much fun and there was this electric energy, us all being int he same room together. I can't wait for you to see it."

"Yeah. Yeah, there was," Ramsey said. "I always think it's fun when Diggle get sot og o these other worlds. He's a really nuts and bolts kind of guy and metahumans kind of freak him out a little bit, so I wanted to see the Diggle/Supergirl reaction."

"It was terrific. It feels like extended family that we don't get to see that often, but when we do, it's great to see them," said Danielle Panabaker, Killer Frost on The Flash, about the other CW series stars. "We get to be a different version of ourselves. I feel like Caitlin often has to be the serious one on Flash, worried about the consequences, and you get to do different things on different shows."

"I was dreading it because these things screw up our schedule and these shows are so hard to make, they're really exhausting and you barely have enough time and we're always behind. However, my participation seemed to be less difficult than normal and I had a great time. Not everybody did, but for me, the great part was being in the room when we were all in the same room and it was insane," explained DC's Legends of Tomorrow's Victor Garber. From a more character-specific perspective, he said that while aliens throw Stein's science-minded brain briefly, "I think he's less concerned than he was with the zombies. The zombies freaked him out, but I don't think anything would surprise him. It's just like, 'okay, now what?' And he has to rise to the occasion and figure out how to get everybody back on the ship before they're killed."

For much, much more on Invasion! and what comes next, keep your eyes fixed on ComicBook.com (whenever you're not watching the shows themselves) for the next couple of days.