Mason Alexander Park

Park was born in Fairfax, Virginia, and moved around as a child for their father's work before settling down in North Carolina. They are of Spanish and Mexican descent. Park discovered acting through a summer camp in Texas. In need of a new environment after being bullied at school, Park went to Los Angeles with their mother and enrolled at Grand Arts High School.

In 2012, Park was one of two actors from high schools in Los Angeles County to win the Jerry Herman High School Musical Theatre Awards of Los Angeles, for their role as Cornelius in Hello, Dolly. They attended the Jimmy Awards in New York City as a finalist.

Park graduated in 2016 with a Bachelor of Arts in Musical Theatre from Point Park University in Pittsburgh. Park began their career as a teenager, guest starring as Toby Peterson in a 2011 episode of the Nickelodeon series iCarly. They would reprise the role in the iCarly reboot in 2023.

In 2015 and 2016, Park worked with the Pittsburgh Civic Light Opera (CLO) on productions such as Mary Poppins and South Pacific at the Benedum Center, and Altar Boyz at the Greer Cabaret Theater. Park alternated the titular role of Hedwig on the 2017 US tour of Hedwig and the Angry Inch. They later returned to the role in 2021 at Olney Theatre Center. They played Dr. Frank N Furter in The Rocky Horror Show in 2018 at Bucks County Playhouse; Emcee in Cabaret at Olney Theatre Center in 2019, which won Park a Helen Hayes Award; and Charlotte in I Am My Own Wife at Long Wharf Theatre in 2020.

Park returned to television when they were cast as Gren in the Netflix live action version of the anime Cowboy Bebop, which was released in 2021. That same year, they put on a solo show in New York titled The Pansy Craze. As of 2022, Park plays the androgynous entity Desire in The Sandman, a Netflix adaptation of Neil Gaiman's comics, as well as Ian Wright in the Quantum Leap revival on NBC.

Park made their West End debut when they once again played the Emcee in Cabaret at the Playhouse Theatre in 2023.