The Flash-Arrow Crossover: 7 Things to Know

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It's happening again, folks.

The world of The Flash is about to crossover with the world of Arrow... and we can't emphasize this point enough: the event will truly be epic.

We know because we've seen The Flash Season 2 Episode 8 and Arrow Season 4 Episode 8 and we then talked to executive producers Marc Guggenheim, Andrew Kreisberg, Greg Berlanti, Wendy Mericle and DC's Geoff Johns (along with cast members Teddy Sears and Falk Hentschel) about the crossover, Legends of Tomorrow and plenty more.

Here's a rundown of what we learned:

1. Shared Universes Like Never Before

Shared Universes Like Never Before
While last year's crossover was treated like two separate episodes with a common thread, Kreisberg explained they took a different approach this time around: "Given the success that we’ve had previously and how people are viewing this as much more of a collective, shared universe, we felt emboldened. And our partners at CW and Warner Bros. were more supportive so we were able to really have a two-hour true event with one story and one villain and one storyline and not having to worry so much about the mechanics of how it would air."

2. A Hunky Hawkman

A Hunky Hawkman
We know that Kendra (Ciara Renee) is Hawkgirl (due to Cisco's visions), but it's not long into the crossover that we meet Hawkman, aka Carter Hall, played by Falk Hentschel. The actor brings an impressive ownership to the character from his first appearance – but when asked about how it felt to wear the Hawkman outfit for the first time, he smiled and said: "It's a very simple answer. It was awesome!"

3. Kendra IS Hawkgirl

Kendra IS Hawkgirl
While you'll have to wait to see how Kendra truly comes to know (and believe) who she really is, the relationship between her character and Carter is a fun one. "In my mind they're like a bickering old couple," Hentschel shared, having already shot episodes of Legends before filming The Flash/Arrow crossover. "He's gone through 4,000 years of loving her and having her love him back…she doesn't know about it yet, though, so there's always this fun dynamic."

4. Vandal Savage Is Baaaaad

Vandal Savage Is Baaaaad
You can't have good heroes without a good villain, right? Savage (Casper Crump) proves to be one of the more formidable we've ever seen on either Flash or Arrow. While the villain does have a plan we see play out in the crossover episode, the producers said he also has a bigger desire, but we’ll have to wait a bit to find out what that is. "He has a very clear plan and trajectory," Guggenheim explained. "The thing about Vandal is that for him, a lifetime is an eye blink. He thinks in thousand-year-old terms. He's very much a master of the long con. Yes, he does have his own personal agenda vis-a-vis the Hawks, but he's got much bigger plans for the world." But trust you’ll get a sense for just how determined and evil Savage is.

5. Crossovers Are Challenging

Crossovers Are Challenging
Doing two shows was one thing ... but adding Legends to the mix added much more to crafting the narrative that serviced everyone' it was also a physical challenge for everyone involved. "Certainly for the actors," Guggenheim said. "Just being asked to shuttle from literally one set to two other sets, oftentimes in the course of a single day to the crews of the three different shows to the ADs, I really do have to give credit where credit is due to the ADs of Legends, Flash and Arrow.”

6. The New Kids on the Block

The New Kids on the Block
Much like Hentschel enters into the show as a fully formed character (as opposed to a new character whose journey is becoming a hero), Sears expressed he’s also enjoyed that element about Jay Garrick: "It’s wonderful just to drop in, in a universe that already exists and to slowly have these things be revealed over time. It's really exciting and especially to come into a world where already so much has happened and there’s a voracious appetite by the fans to peek in on the guys and gals around STAR Labs. For me, the most ideal way to join a show."

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Shows:
Arrow, The Flash
Episode:
Arrow Season 4 Episode 8: "Legends of Yesterday"
Related Photos:
Arrow Slideshows, The Flash Slideshows, Arrow Season 4 Episode 8 Slideshows
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Arrow Season 4 Episode 8 Quotes

Whatever you do, don't let him train you. [to Oliver] I'm sorry, but when it rains, I can still feel where you shot me with those arrows.

Barry [to Kendra]

Thea: A bunch of superheroes in a farm house? I feel like I've seen that in a movie before.
Oliver: We need a secure location.
Caitlin: What's wrong with STAR Labs?
Oliver: Well, absolutely nothing if you forget about the revolving door you guys installed so the bad guys can come and go as they please.
Caitlin: Remind me again what happened to your old lair, or the one before that...