I love that he still wore the parka even in the scene before he got the new Cold Gun.

In that one episode where the future was changed, Wells had Gideon check all the databases for references to The Flash.

If that scene doesn't happen in next week's episode I will be so disappointed!

I presume Cisco was being followed. He'd been there for awhile before Barry showed up and Lisa only specified she'd been watching him for some time, but not necessarily since before Cisco got there.

Also, he never went to his brother's party in the other timeline, and thus didn't go to the bar where Lisa was able to make her move.

My theory is that it's not actually gold, but a gold-colored Sciency Substance. Also, Cold probably prepared all the materials for his and Heatwave's guns, knowing them inside out, he'd know what was necessary to build it. So Cisco'd probably only need a few more things for the sciency substance, which Cold could…

This, and the changes made sense too. Cisco wasn't kidnapped in the other timeline because he didn't go to his brother's birthday party (and thus, the bar where Lisa cornered him). Barry didn't mention Mason Bridge's suspicions to Cisco, who thus never investigated Wells further. Plus the Iris thing which they spelled…

Considering Cold's real goal was Flash's secret identity, I'd say he probably could have built it on his own but made Cisco do it because it amused him.

Unless Wells had a fake DNA sample on file. Even if he's not Future!Barry, I doubt he'd let them have his actual DNA.

But we also have canonical time travel. The RF in that room could have been a future/past version of Wells.

That was the intention. Executive Producer Andrew Kriesberg described Hartley with that exact line "evil Harry Potter."

I loved that scene! I thought it was a great way to show how integrated his powers are into his life now, plus it looked really cool.

This reminds me of the webcomic El Goonish Shive. The author, Dan Shive, once included a character named Tom who was a total jerkass. Not wanting the name Tom to be sullied, he included a background character also named Tom who spends his time saving puppies and being the nicest, awesomest guy you could ever meet.

Close enough for the joke to work.

What makes this line 10x better is remembering Clara was a babysitter.

Actually in Jus in Bello, they trapped the demons inside the building using salt and devil's traps. I think what Kumagrol was saying exorcisms shouldn't work on demons who aren't trapped because as soon as they realize what's happening, they bolt.