Pretty Little Liars

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Sydney Penny Cast as Mona’s Mother on Pretty Little Liars

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Ready to meet Mona's mother?

ABC Family has confirmed that Sydney Penny has been cast on Pretty Little Liars Season 5 in the recurring role of Leona Vanderwaal, the woman who brought Janel Parrish's mysterious character into the world.

Sydney Penny pic

No word yet on when Penny will debut on the drama, but the actress is likely best known for her 2011 role of Dr. Liv Norman on Days of Our Lives.

She also starred on All My Children for many years as Julia Keffer and appeared on an episode of Drop Dead Diva.

Pretty Little Liars Season 5 Episode 6 airs tomorrow night at 8/7c. Here's an extended, photographic look at what's to come:

Hanna v. Ali!
Hanna and Ali are going to have a conversation during "Run, Ali, Run."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.

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Pretty Little Liars Quotes

You think the truth is this big shiny disco ball of purity then go ahead and try it. See what it gets you. Telling the truth to the wrong person at the wrong time is how I ended up where I did. Take it from me you're always better off with a really good lie.

Alison

Mona: Which one of you girls is best at hiding the truth from someone who's close to you?
Spencer, Hanna, and Emily: Her!
Aria: Wow, thanks guys.