The couple hold hands while walking in Chinatown in Bangkok on Saturday night as Thailand entered the second day of Songkran festival, the world's biggest water fight.
Chinatown is in one of the oldest areas of Bangkok.
Yaowarat Road is the main artery of Bangkok's Chinatown where families of Chinese descents have been operating food stalls, restaurant and market stalls for decades.
Both wear sporty outfits to participate in the Songkran water festival that typically lasts for nearly a week and draws tourists from across the world.
Minh began his acting career in the late 1980s and moved to the U.S. around 1990 to pursue further opportunities in acting and voice-over work.
Minh’s girlfriend gave birth to their child Dustin on Nov. 6. Minh has two other children from his previous marriage to Vietnamese-American actress Hong Dao.