05/06/2013 05:58 pm ET Updated Jul 06, 2013

Brett Dier And Elizabeth Whitson To Play Twins On 'Pretty Little Liars' Spinoff 'Ravenswood'

ABC Family

It looks like "Pretty Little Liars'" Caleb is going to get some company when he relocates to "Ravenswood" next year.

ABC Family has announced that the Pretty Little Liars spin-off series "Ravenswood" has cast two of its series regulars, in addition to "PLL" favorite Tyler Blackburn.

Read more on EW