It was recently released a picture of Danielle Panabaker, who plays Caitlin Snow, dressed as Killer Frost. We did indeed get a glimpse at her in the season 1 finale, but it remains a secret when she'll appear again. Luckily they shared this picture with us fans.
She looks nice, right?
Danielle Panabaker appeared on CBS to talk about The Flash and her character and here's what she said:
I’m such a girl and I love getting dressed up in that look. We changed; we started working on the look a couple months before it actually shot, so our first suit was a one piece, kind of like Catwoman’s. Very sexy. But it didn’t feel quite right, so then we changed it to be like a top and these really cool leather pants. The hair was awesome. It started actually as a short little pixie wig and we just kept adding more and more hair, as you do. It’s great. I’m really excited.”
The season 1 finale tease obviously told us that the second season will be Barry discovering this Dark Side in Caitlin and the why, but there is something also happening with Cisco, played by Carlos Valdes, that discovered that he also has powers, and it might take a long time till he becomes the DC comics "Vibe"