[SPOILERS for The Flash season one ahead.]
The season finale of The Flash opened up the series to parallel universes in addition to time travel. The battle with the Reverse-Flash ended with a hole in space opening up above Central City, with Barry Allen (Grant Gustin) forced to run into it to try and save his friends and family. Alternate universes have already been confirmed to play a role in the second season, with star Gustin specifically referencing Earth-One and Earth-Two.
The finale also offered a small tease of things to come when an iconic helmet tore through the fabric of reality. That same helmet appeared in the trailer for the upcoming series DC's Legends of Tomorrow, solidifying the importance of the reference. The helmet belongs to none other than Jay Garrick, the original Flash from the comics and resident of the alternate dimension Earth-Two. Now, it's been confirmed that the character will be appearing in the second season of The Flash.
During the Warner Bros. Television panel at San Diego Comic-Con 2015, it was revealed that actor Teddy Sears (Masters of Sex) will be portraying Jay Garrick in the upcoming season. Additionally, Shantel VanSanten (The Messengers) has been cast as Detective Patty Spivot, a relatively new character from the comics who will be partnering up with Detective Joe West (Jesse L. Martin).
Executive Producer Greg Berlanti also revealed that the new season will be picking up a few months after the events of the Flash season one finale. There will be a lot of new faces as the series picks up, with the eventual introduction of characters from Earth-Two. Andrew Kriesberg, another executive producer on the series, revealed that the villain of season two will be Professor Zoom and that Wally West (Kid Flash) will be introduced this season.
Finally, attendees were treated to a highlight reel that recapped the first season of The Flash as well as provided a short teaser for the second season. You can watch the full video below:
Jay Garrick was the original Flash that debuted in the 1940s. Though they share a name, Jay Garrick doesn't have a connection to the Speed Force. As such, he's not as fast as Barry Allen and ultimately takes on a mentor role when the characters eventually meet. In the second season of The Flash, Jay Garrick will come through to Barry's dimension to warn him about a threat to the universe.
That threat is likely Professor Zoom, the confirmed overarching villain for the second season. Zoom is faster than The Flash or the Reverse-Flash, affecting time itself to slow down everything around him. Separate from the Speed Force, his abilities make him nearly impossible to catch.
It seems The Flash season two will continue the show's explosive pace, introducing the multiverse and a number of new speedsters to the expanding cast. With most of Flash's primary villains already introduced in the first season, fans were left wondering where the show could possibly be going next. Before the series began, nobody could have predicted how far down into the Flash's mythos the series would be delving. With time travel and alternate universes already accepted, nothing seems to be off limits for the series.
There's always a danger of the show collapsing under the weight of its own ambition, though the cast and crew have proven time and again they're up to the challenge. If the series can keep delivering the strong character moments and incredible levels of charm from the first season, there's no limit to how far they could go.
The Flash season two premieres on October 6th, 2015 on The CW.