The CW reveals how Wentworth Miller will return to the Arrowverse

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Just a few days ago, Wentworth Miller -- who's starred as Leonard Snart, aka Captain Cold, on The CW's The Flash and Legends of Tomorrow -- revealed that he was shooting his final episodes in the network's Arrowverse. Now, we know that his apparently final appearance will arrive in the form of an alternate version of the character.

Which, yes, we realize the Captain Cold we know and love actually died back in Season 1 of Legends. But that hasn't stopped Miller from sticking around the past few years anyway. Gotta love time travel. And now, alternate dimensions. Also, yeah, there have also been some sneaky easter egg teases that some alternate-universe version of Snart could be a hero. So they've certainly laid some groundwork along the way.

Later this month the four DC Comics-based CW series -- ArrowThe FlashLegends of Tomorrow, and Supergirl -- will air a four-way crossover titled "Crisis on Earth-X." A new synopsis for the event made it clear how Miller's Snart will make his appearance as villains launch an attack against the wedding of Barry Allen and Iris West:

"Barry and Iris’s wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold, The Ray, Felicity Smoak, Iris West and Alex Danvers to take on their most formidable villains yet. Earth’s mightiest heroes – Green Arrow, Supergirl, The Flash and White Canary – lead their teams into battle to save the world."

Did you catch the key phrase in there? That's right: "Citizen Cold."

Citizen Cold is an alternate version of Leonard Snart introduced during the Flashpoint event (which launched the "New 52" version of DC Comics) back in 2011. In that continuity -- in which Barry Allen tries to go back in time in an effort to save his mother and finds things significantly altered -- Citizen Cold has the same look and abilities, but he's the key hero of Central City. He's got his own rogues gallery and museum, and, though the story hints at something dark lurking behind his heroism, he's basically the top superhero in the city. In the Arrowverse Captain Cold was first introduced as a straight-up villain on The Flash before evolving into something of an antihero on Legends of Tomorrow. Now it seems Miller will get to see the character off by transforming him into a full-on good guy, if only for a little while.

The backstory and homeworld of this particular version of Citizen Cold aren't clear. It's also not clear whether that will actually be the last we see of Miller in the Arrowverse, but we'll find out more when "Crisis on Earth-X" airs in a pair of two-hour blocks Nov. 27 and Nov. 28 on The CW.

(Via EW)