Wong has played a genetic engineering entrepreneur, an East Asian gangster, a loyal assistant, and a fey caterer's helper variously in Sidney Lumet's "Family Business" (1989), "The Freshman" (1990), "Mystery Date" and "Father of the Bride" (both 1991). Wong also appeared fleetingly as biogeneticist Dr. Wu in Steven Spielberg's sci-fi epic "Jurassic Park" (1993). He fared better in a memorable guest appearance on John Sayles' short-lived TV series, "Shannon's Deal" (NBC, 1991). Wong also registered as the lover of Sir Ian McKellen in the acclaimed TV adaptation of "And the Band Played On" (HBO, 1993).
Wong proved himself more than capable to the task of joining a TV comedy ensemble with "All-American Girl" (ABC, 1994-95), the first sitcom to deal with the Asian-American experience. As the relatively mild-mannered, accommodating older brother of the pugnaciously assimilated Margaret Cho, his character was the favorite child of their traditional Korean mother.