The pieces of the Ravenswood puzzle are really coming together! ABC Family announced May 6 that Brett Dier and Elizabeth Whitson have been cast as the show’s previously-mentioned twins, Abel and Olivia. We’ll meet them for the first time when Caleb (Tyler Blackburn) travels to Ravenswood in October, immediately following the Pretty Little Liars Halloween special.

CW junkies will remember Brett from The L.A. Complex, where he played über Christian — and Abby’s secret friend-with-benefits — Brandon, while Elizabeth comes from the modeling world.

Here’s ABC Family’s official description, introducing Ravenswood‘s twins:

BURBANK, CA (May 6, 2013) – ABC Family announced today that it has cast two new series regulars in the “Pretty Little Liars” spin-off series, “Ravenswood.” Brett Dier will star as Abel, a lone wolf with an old soul whose trust is hard won but who is loyal until the end, and Elizabeth Whitson will star as Olivia, a once carefree and effortlessly happy spirit who has recently experienced hardship, leaving her questioning what’s important and what no longer matters. Abel and Olivia are twins whom fans will first meet during the “Pretty Little Liars” special Halloween episode.

HollywoodLifers, what do you think of this casting? Are you excited for Ravenswood? Drop a comment with your thoughts on the Pretty Little Liars spin-off below!

— Andy Swift
Follow @AndySwift

More ‘Ravenswood’ Scoop:

1. ‘Ravenswood’ Scoop: Tyler Blackburn Joins ‘Pretty Little Liars’ Spin-Off
2. ‘Ravenswood’ Scoop: Meet The ‘Pretty Little Liars’ Spin-Off’s Key Players
3. ‘Pretty Little Liars’ Reveals Spin-Off Series ‘Ravenswood’

For those suffering from L.A. Complex withdrawal, myself included, it looks like Emily Owens, M.D., might have a cure! HollywoodLife.com has learned that Brett Dier — who appeared on the second season of The L.A. Complex as Abby’s Saying Grace co-star — will play Henry, a cystic fibrosis patient in need of a lung transplant, on an upcoming episode of The CW’s freshman medical drama.

Brett first announced his role on Twitter. “Off to do a makeup test for my role in Emily Owens M.D.” he tweeted Oct. 23.

New episodes of Emily Owens, M.D., air Tuesdays at 9 p.m. on The CW.

— Andy Swift

Follow @AndySwift

More L.A. Complex news:

1. ‘L.A. Complex’ Finale: Cassie Steele Talks Abby’s Life-Changing Decision
2. ‘The L.A. Complex’: Cassie Steele Reveals Abby’s ‘Messy’ New Secret
3. A ‘Teen Wolf’ Couple Is ‘Strained,’ ‘The L.A. Complex’ Finds Religion & More TV Scoop