It’s not uncommon to see a Rosewood parent poking around set, but last week one Pretty Little Liars’ real-life mom was seen cheering on her daughter in person. Which Liar had parental supervision?...

It was none other than television darling Troian Bellisario (Spencer), who tweeted this Instagram photo two days ago. It is a glam shot of her mother, Deborah Pratt, and Pretty Little Liars showrunner Marlene King with the tag “Pll mom @imarleneking and real mom on set!” Aw!

Troian’s mom is no stranger to the television set. In fact, the whole Bellisario family is involved in the business. Donald Bellisario, Troian’s dad, was the producer and sometimes writer behind television shows like Magnum, P.I.; Quantum Leap, JAG, and NCIS. And Deborah is an actress, writer, and producer herself. Maybe Deb can have a guest spot on the show. Talent runs in the Bellisario family!

Season 4 of PLL premieres on June 11, but in the meantime, you can check out an adorable baby-faced Troian and her mom in this awesome Quantum Leap episode.

Catch the next episode of Pretty Little Liars on Tuesday, June 11, 2013 at 8 p.m. ET/PT on ABC Family.