EW has announced that “The Vampire Diaries” alumni Susan Walters has signed on to join the show as Carla Tannhauser. In addition to being Caitlin Snow’s mother, Carla is also a biomedical engineer and the CEO of a major research company.

According to the report Caitlin and her mother don’t exactly get along and they have what’s being described as a “difficult relationship.”

It was also noted that there’s potential for Carla Tannhauser to become a recurring character.

“The Flash” season 3 will of course kick off with “Flashpoint” and Danielle Panabaker recently commented on how the Caitlin we see in “Flashpoint” will be different from the Caitlin Snow that we’ve come to know and love.

“Totally different,” Panabaker says. “All the relationships are very different.”

“The Flash” will return on the CW on Tuesday, October 4th.

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Everyone’s excited for Killer Frost’s debut as we’ve seen quite a few photos of her and even a few clips. But we have yet to see her use her powers. Panabaker confirmed to TVLine that we would be seeing Killer Frost use her powers in the two episodes that take place on Earth-2 and she even revealed a few details about what powers we’re going to see.

“A lot of what we see in this week’s episode is her use of icicles, how she can shoot them from her hand. She has control over ice and in [next week’s episode] we see her explore her powers a bit more.” Panabaker said.

Given that the next two episodes of “The Flash” will take place on Earth-2 we expected things to look a little different. But Danielle Panabaker says that Earth-2 really is its own world and that it’s “completely different” from Earth-1.

“I like that it’s a bit retro. Theres a classic element to it that just looks cool. I feel very lucky that everyone on our show is so talented that we were able to pull off so many different looks. Earth-Two is so completely different than Earth-One, so I’m really excited to see it all come together.” she added.

This week’s episode “Welcome to Earth-2” kicks off a two part story arc where Team Flash travels to Earth-2. You can check out a synopsis below and a trailer above.

“BARRY VISITS EARTH-2 – Barry (Grant Gustin), Wells (Tom Cavanagh) and Cisco (Carlos Valdes) journey to Earth-2 to rescue Wells’ daughter, Jesse (guest star) from Zoom. Barry is stunned when he runs into Earth-2 Iris (Candice Patton) and Joe (Jesse L. Martin), but nothing prepares him for meeting Killer Frost (Danielle Panabaker) and Deathstorm (guest star Robbie Amell). Meanwhile, back on Earth-1, Jay (guest star Teddy Sears) has to take over the Flash’s responsibilities when a meta-human nicknamed Geomancer (guest star Adam Stafford) attacks Central City.

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