Pretty Little Liars Flashback: Troian Bellisario Co-Starred With the Olsen Twins! (VIDEO)

How’s this for a freaky flashback? It’s 1998. The Olsen Twins are starring in yet another family movie. And lo and behold, one of our favorite Pretty Little Liars stars shows up in one of their scenes! Yes, Troian Bellisario (Spencer) (who still used her middle name Avery at the time) co-starred with Mary Kate and Ashley in Billboard Dad, and Troian tells Buzzfeed that she and the Olsens go way back. "I grew up across the street from them so we used to play all the time,"...


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