'Billions' Introduces TVs First Non-Binary Character in 2017 In 2017, non-binary actor Asia Kate Dillon made history by being the first nonbinary actor with a lead role on a major television network with their portrayal of Taylor Mason on Showtime's Billions. What made Billions so great was that Mason was a fully-fleshed-out character, instead of being reduced to a token minority role. In a climate where transgender actors are still struggling to be cast in transgender roles, the fact that Dillon is non-binary made their breakthrough all the more important. Image Source: Everett Collection