It's official! After months of speculation, GH Executive Producer Frank Valentini confirmed on Twitter that three-time Emmy-winner Billy Miller is set to join the cast as Jason Morgan, the role vacated by Steve Burton (Dylan, Y&R) in 2012. “I am really excited to be working with such a talented and acclaimed actor as Billy,” said Valentini in a statement. “Our cast is thrilled that he will be joining our 'General Hospital' family, and I know that he will be an amazing addition to our talented cast.”