According to Big Shiny Robot, “Star Wars’ first official LGBT character is named Moff Mors, and is described by the site as an Imperial who has made some very serious mistakes, but is still considered to be an incredibly capable leader and spends much of the book working hard to prevent absolute failure. The site notes, [Moff Mors] also happens to be a lesbian.”
“Same-sex relationships have yet to be explored in the Star Wars Universe, aside from a couple of subtle references in the games and books. Bioware added the option for a same-sex relationship in Star Wars: The Old Republic, and in the novel “Legacy of the Force” there was an ambiguous reference to a same-sex Mandalorian couple.
Speaking on the Full of Sith podcast, “Lords of the Sith” editor Shelly Shapiro opened up about Moff Mors and the need for diversity in Star Wars. “This is certainly the first [LGBT] character in canon,” Shapiro said. “But there was a gay Mandalorian couple, so it’s not brand new. It’s not something I really think about, it just makes sense. There’s a lot of diversity–there should be diversity in “Star Wars.” You have all these different species and it would be silly to not also recognize that there’s a lot of diversity in humans. If there’s any message at all, it’s simply that “Star Wars” is as diverse (or more so because they have alien species) as humanity is in real life and we don’t want to pretend it’s not. It just felt perfectly natural.”