DC Arrow-verse fans were blasted with some sad news a few days ago when it was revealed Wentworth Miller would be filming his final episodes for The Flash and Legends Of Tomorrow. While it is unfortunate that the actor who made Leonard Snart a beloved character on both shows is exiting the Arrow-verse, there's a bit of a silver lining to this cold and dark (but mostly cold) rain cloud. A synopsis for the upcoming four-way crossover has confirmed that Miller will appear as "Citizen Cold" to help our heroes defeat their new but familiar foes.
So who in the hell is Citizen Cold? In DC Comics, Citizen Cold is an alternative version of Captain Cold created in the Flashpoint timeline. A protector of Central City, Citizen Cold was the equivalent of The Flash, and even had a museum in his honor. So essentially, Wentworth Miller's return as Citizen Cold will be as a full-fledged hero, although it's a little problematic as to how he'll emerge, given the current state of The Flash.
We've seen the Flashpoint timeline in The Flash, and if memory serves, there was no Citizen Cold running around and saving Central City. That said, with the doppel-invaders and The Ray hailing from Earth-X, it would be rather easy to introduce Citizen Cold as a hero of Earth-X. After all, that world contains an evil Oliver Queen and a plethora of other heroes taking villainous turns, so is it really hard to believe that world's Leonard Snart would use his cold gun for good?
It'd also be a great way to send off Wentworth Miller, as this storyline prevents yet another distinct return for Leonard Snart, and thus limits any further connections Miller has to the prime Arrow-verse world, being his final episodes. Unfortunately, nothing we've seen indicates how much of the four-part crossover Miller will be involved in, but one can speculate his character might at least make an entrance at some point during The Flash or Legends Of Tomorrow section, since the character doesn't really have any strong connections to Supergirl. Having said that, the crossover has been said to be more cohesive this time around, and less specifically on whatever show is airing and , so it's completely possible Citizen Cold could pop up in the first episode.
The big Arrow-verse crossover is currently scheduled to kick off with Supergirl on The CW on Monday, November 27th at 8 p.m. ET. For more on the crossover, read up about how the event will be a big moment for the Danvers sisters, or how this crossover is said to have high emotional stakes. For more on upcoming unreleased fall programming that's worth catching up on in the meantime, visit our fall premiere guide or see what shows have been cancelled in 2017.