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Elizabeth Whitson and Brett Dier join Ravenswood cast

Pretty Little Liars and Ravenswood fans, meet Abel and Olivia!

*Pretty Little Liars* and *Ravenswood* fans, meet Abel and Olivia!

Elizabeth Whitson and Brett Dier are the latest stars to join the Pretty Little Liars spin-off as twins, Abel and Olivia.

Abel is a lone wolf and old soul. There's a little hint of danger lurking inside him (or he’s just wounded and covering it up), his trust is hard to earn but once you're in his good books he will never let you down.

And Olivia, his sister and a former prom queen, is learning who to trust after most of the peeps in her inner circle turned their backs on her.

It was just announced that Tyler Blackburn will head over to the series (set to launch in October) as well!