[5] They enrolled in and completed the Meisner training program at The Actor's Workshop of Ithaca during their junior year of high school at age 16.

[8][9] Dillon played white supremacist Brandy Epps, a penitentiary inmate, in eight episodes of Orange Is the New Black in 2016, making them one of the first openly non-binary actors cast in a major television show.

[18][19][20] Their effort to clarify the matter for all non-binary people prompted the MTV Movie & TV Awards to combine their gender-segregated categories.

[23] Dillon is the founder and producing director of MIRROR/FIRE Productions, which created US, a performance piece exploring racism and the Black Lives Matter movement in the United States.

[7] In June 2019, to mark the 50th anniversary of the Stonewall riots, an event widely considered a watershed moment in the modern LGBTQ rights movement, Queerty named them one of the Pride50 "trailblazing individuals who actively ensure society remains moving towards equality, acceptance and dignity for all queer people".