Alexander's debut acting role was on
Netflix's
The OA, where they played Buck Vu. Buck, like Alexander, is also a Vietnamese-American transgender youth and was partially based on Alexander's real experiences. They were cast from an open casting call online that spread through
Tumblr. Later they were cast in the 2018 feature film
Every Day, based on the
book by
David Levithan, playing Vic, a trans teen whom the spirit "A" inhabits for a day. In October 2017,
Naughty Dog announced Alexander had joined the cast for
The Last of Us Part II, the sequel to their
popular video game. They played Lev, a transgender character in the game. In June 2019, to mark the 50th anniversary of the
Stonewall Riots, sparking the start of the modern
LGBTQ rights movement,
Queerty named them one of their Pride50: "trailblazing individuals who actively ensure society remains moving towards
equality, acceptance and dignity for all
queer people". Similarly, Alexander was one of the cover stars for the 2019 Pride issue of
them., "spotlighting three rising queer artists whose work and lives are breaking new ground for LGBTQ+ visibility". In March 2020, it was announced Alexander would star in the independent film
Daughter. In September 2020, it was announced Alexander had joined the cast of
Star Trek: Discovery; they play the first transgender character played by a transgender actor in the
Star Trek canon. == Personal life ==