Tonight's status quo-shattering midseason finale of The Flash brought on the first appearance of Barry's greatest foe (the Reverse-Flash) as well as a longtime Justice League ally (Firestorm) and a veteran of the 1990 TV series, Amanda Pays' iteration of Tina McGee.
There was a LOT crammed into not too much space, leaving less room than usual for casual Easter eggs to drop, but that doesn't mean there wasn't plenty to see.
What did we catch? What did we miss? Read on...
We wasted no time in getting the the man in the yellow suit, having the Reverse-Flash appear in the episode's cold open.
Always the archenemy of The Flash, there have been a number of different Reverse Flashes (often also called Professor Zoom).
The one here? No idea, although he seems to vibrate like, and have glowing eyes like, Hunter Zolomon, a version of the Reverse-Flash that sees himself as a hero doing what he does to make The Flash "better."
That would track with the "you have to go faster" taunts that we get throughout.
Robbie Amell appears as Firestorm, the DC Comics superhero made up of two consciousnesses sharing a body -- a body that's always on fire and able to transmute matter, among other things. Often, Ronnie Raymond is joined by Professor Stein, while sometimes it's Jason Rusch. Both have been cast in the series, but we have already seen Victor Garber (Stein) wearing identical wardrobe.
The Harrison Wells of the 1990s The Flash TV series, Tina McGee was not only Barry's biggest scientific booster, but also a potential love interest for Barry.
In the comics, she was a supporting character for Wally West, who was of course The Flash at the time of the first TV show.
"I'm not Ronnie."
It could be the trauma, or it could be that it's literally Stein speaking at that moment. That's probably a longshot; the trauma seems like the more logical answer...but it's also less "reversible," and Ronnie seems kind of...Ronnie-like...in the sequence where he saves Barry.
"The man in yellow might have killed his mom, but there was another speedster there that night."
The Flashpoint crossover event resulted from Barry traveling back in time to stop the Reverse-Flash from killing Nora Allen. He succeeded, and it altered the timeline radically, creating a dystopian present so terrible that Barry had to team up with Batman to once again go back in time...this time to stop himself.
The Flash ring
Traditionally, The Flash wears a ring that has his costume hypercompressed into it. It can pop open and he can suit up in a flash.
Here, though, the ring is more practical, used for access to Wells' secret stash...his Reverse-Flash costume.
During the '90s, Wally West's costume didn't come out of the ring (it was likely deemed not realistic enough for the time period). Instead, he had a costume composed of concentrated speed force...something that seems like it might be mirrored here for Wells' infusion of energy into the suit.