This Is How Everyone On Pretty Little Liars Is Related

Photo: Ron Tom/Freeform
Pretty Little Liars has a family tree more complicated than anything on Game Of Thrones. The Freeform series, which is chugging towards its epic conclusion on June 27, knows exactly how to make jaws drop. And often that involves pulling a secret family connection out of the ether. The teen drama has introduced a (potentially) evil twin, a secret cousin/sister, and even a bizarre egg donor situation that may make you feel a little nauseous.
With the series promising we'll get every single one of our answers by the end of the season, there's bound to be even more family surprises ahead. Will we finally learn if Spencer (Troian Bellisario) has her own twin? Will we discover that the father of Alison's (Sasha Pieterse) baby is a beloved character? Will Peter Hastings (Nolan North) reveal that he's fathered even more children?  (Seriously, dude...didn't you learn your lesson the first time?!?)
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The truth is certainly out there — but before we get it, let's finally clear up who is related to who on this show. Because, let's be honest: It's not easy to remember who shares DNA on this series.
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Photo: Ron Tom/Freeform
Spencer Hastings

Spencer (Troian Bellisario) always had complicated feelings about being a Hastings — and that might be because she's also technically a Drake. Spencer discovered that her father Peter (Nolan North) had a one-night stand with Mary Drake (Andrea Parker), believing that she was actually her identical twin Jessica DiLaurentis. That hookup led to Mary becoming pregnant with Spencer, and the Hastings adopting her after her birth in Radley.
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Mary Drake

Mary is the identical twin sister of Jessica DiLaurentis, and spent much of her teen years and adult life in Radley Sanitarium. That's where she gave birth to Charles DiLaurentis, who would later transition and become the woman we would know by her alter-ego Cece Drake — and now, as the deceased Charlotte DiLaurentis. She is also the biological mother of Spencer, whom she also gave birth to in Radley.
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Charlotte DiLaurentis

Charlotte (Vanessa Ray) was born "Charles DiLaurentis," then transitioned and became Charlotte during her teen years. She is the biological daughter of Mary Drake and Pastor Ted (Edward Kerr), and the adopted daughter of Jessica and Kenneth DiLaurentis (Jim Abele). She is the biological cousin of Alison and Jason DiLaurentis, but their adoptive sister. She is also the biological half-sister of Spencer, as they share a mother.
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Alison DiLaurentis

Alison's parents (as far as we know, anyway) are Jessica and Kenneth DiLaurentis. Jason (Drew Van Acker) is her biological half-brother, as they share Jessica as a mother. She is Spencer and Charlotte's biological cousin as Alison's aunt, Mary, is Spencer and Charlotte's biological mother. She is currently the surrogate for Emily's (Shay Mitchell) eggs, which the villainous A.D. had planted in her womb without her knowledge or will.
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Photo: Eric McCandless/Freeform/Getty Images
Pastor Ted

In season 7b, it was revealed that Ashley Marin's (Laura Leighton) ex-boyfriend is Charlotte's biological father. Ted met Mary during college (he was a senior, she was a free spirit) but only learned later that he was Charlotte's father. Ted actually met Charlotte (when she was still identifying as Charles) when Ted's child attended a kid's camp he was working at.
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Peter Hastings

Peter is the biological father of Melissa (Torrey DeVitto), whom he shares with wife Veronica Hastings (Lesley Fera). He is also the biological father of Jason, whom he shares with Jessica, and Spencer, whom he biologically shares with Mary. Veronica and Peter adopted Spencer after she was born to Mary, but tried to hide the fact that Jason was Peter's biological son from pretty much everyone.
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Photo: Eric McCandless/Freeform
Jason DiLaurentis

Jason is the biological child of Jessica and Peter, stemming from their extramarital affair. He is the half-sibling of Spencer and Melissa, as they both share Peter as a father. He is also the half-sibling of Alison, as they share a mother. He is the cousin of Charlotte, whom he also dated in high school. (Yeah, it's gross, but she's his first cousin.)
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Jessica DiLaurentis

Jessica is the biological mother of Alison (her daughter with husband Kenneth) and Jason (her son with Peter) and the adoptive mother of Charlotte, who is biologically her niece. To throw even more Greek tragedy into the mix, it was revealed she was murdered by her own identical twin sister Mary.
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