Wentworth Miller's Leonard Snart is getting a sister on The CW's "The Flash."
Access Hollywood has learned that "The Tomorrow People" alum Peyton List is joining the hit show as Leonard's little sis, Lisa Snart.
While Leonard is cold and calculating, Lisa is a wild child and anxious to prove to her older brother she’s got what it takes to be in his criminal gang. She is sly, charming, and even a little sadistic. She's also not afraid to use her sexuality to get what she wants, which will put her on a collision course with S.T.A.R. Labs employee and friend of The Flash -- Cisco Ramon (Carlos Valdes).
Peyton's first episode of the show, Episode 116, titled "Rogue Time," will air next year. (In the DC Comics world, her character is also known as The Golden Glider.)
Leonard Snart, who Cisco nicknamed Captain Cold, quickly became a thorn in The Flash's (Grant Gustin) side, when he made his debut earlier in the season. While not a meta-human, Leonard obtained some technology (a special gun that freezes things), originally built by Cisco, which helps aid him in his criminal pursuits in Central City. He is expected to expand his associations (The Rogues), hooking up with Heat Wave (played by Dominic Purcell) when "The Flash" returns in January on The CW.
Last season, Peyton played Cara on "The Tomorrow People" alongside Robbie Amell. Robbie is currently on "The Flash" playing Ronnie Raymond/Firestorm, the once-thought-dead fiance of S.T.A.R. Labs' Caitlin Snow (Danielle Panabaker).
Peyton also played Jane for five seasons on "Mad Men," a young woman who won the heart of Roger Sterling (John Slattery). The two characters married on the AMC show, but later split.
Her previous credits include "FlashForward" and "Big Shots" on ABC.
"The Flash" returns with new episodes on January 20 on The CW.
-- Jolie Lash