Dylan O’Brien’s alleged family drama is being exposed. The 33-year-old actor was recently called out by his trans sibling, Julz, after he opened up about their relationship last year at the Sundance Film Festival. While promoting his queer thriller film “Ponyboi” at the time, O’Brien told Vulture, “I have a trans, non-binary sibling and I know people in my personal life as well who are queer. I am so grateful for how much it deepens my experience in this world.” Dylan O’Brien and his sibling Julz.