The secret is out. After an extensive five-year hiatus, “Pretty Little Liars” is officially getting the reboot it deserves. Titled “Pretty Little Liars: Original Sin,” the HBO Max series will feature entirely new plot twists and storylines and, of course, brand-new characters. The “Pretty Little Liars: Original Sin” cast is full of fresh faces who we’re sure to learn a lot more about soon, though time will tell if their characters will hold up against Troian Bellisario’s Spencer Hastings, Lucy Hale’s Aria Montgomery, Ashley Benson’s Hanna Marin, and Shay Mitchell’s Emily Fields.