Badgley shared his thoughts on his former "Gossip Girl" co-stars, including ex Blake Lively and the late Michelle Trachtenberg.

Penn Badgley’s Call Her Daddy interview brought out a collective warm, fuzzy feeling in every Gossip Girl millennial fan. The actor, who played Dan Humphrey in the cult-classic series, sat down with Alex Cooper to talk about everything from his early career,

Penn Badgley is opening up about the challenges of dating his "Gossip Girl" co-star Blake Lively while working on the hit series. Badgley, who played Dan Humphrey, dated Lively, who played Serena van der Woodsen, from 2007 to 2010, mirroring their characters' onscreen romance.