Rex Masterson is a former Paramedic with the San Andreas Emergency Medical Services. He resigned from his position on November 2nd, 2019.
Masterson is originally from Vice City, where he was formerly a stage and television actor. His largest role before switching careers was a recurring role on CSI: Vice City, in which he played Detective Tommy Winston in thirty-five episodes over seven seasons.
At the age of eight, Rex's father died from bone cancer. For a few years after, Rex lived alone with his mother. She eventually married a second time and had a daughter with her new husband a couple of years later - Rex's sister, Audrey Storm.
Back in Vice City, Rex was engaged to fellow actress Melissa Macintosh from 2014 to 2015. Before they could be married, his fiancee died from an undiagnosed heart condition.
Rex began dating Sadie Nelson on June 9th, 2019. The two became engaged on August 11th, 2019 and then married on the 19th of September 2019.
After having grown apart over Rex's desire to leave the city and Sadie's desire to stay, the two divorced on May 27th, 2020. Rex accepted a job in Hawaii and moved out of Los Santos shortly thereafter.