'Ravenswood' Casting: Brett Dier, Elizabeth Whitson To Play Twins On 'Pretty Little Liars' Spin-Off

RavenswoodAnd just like that, the Ravenswood population sign needs an update.

The Hollywood Reporter has the news that "L.A. Complex" actor Brett Dier and model Elizabeth Whitson have joined the ABC Family series, a spin-off of the network's hit "Pretty Little Liars."

The two will play twins Abel and Olivia: the former, a "lone wolf and old soul" who's slow to trust; the latter, a "prom queen who's fallen from grace" and lost most of her friends. Brett and Elizabeth join previously announced star Tyler Blackburn, whose character Caleb is making the move from Rosewood to Ravenswood during the "Pretty Little Liars" Halloween special. (No word yet on what Caleb's relocation will mean for his relationship with Hanna...)

"Ravenswood" centers on a town not too far from Rosewood, where a deadly curse unites five strangers, who must uncover the truth before it's too late for them...and their entire town. The series will premiere after the aforementioned "PLL" episode.

What do you think about Brett and Elizabeth moving to Ravenswood? Tell us in the comments and on Twitter!