Wong first appeared as a guest star in the second season episode "Pique", and made several guest appearances in the third season. Beginning with the fourth season, Wong is a regular cast member. Wong, who is openly gay, was in a long-term relationship with talent agent Richie Jackson. In 2000, the couple had twin sons together; Boaz Dov, who died 90 minutes after birth, and Jackson Foo Wong. They were born through a surrogate mother, using Wong's sperm and an egg donated by Jackson's sister. In 2003, Wong wrote a memoir about his experiences with surrogacy titled Following Foo: the Electronic Adventures of the Chestnut Man. Wong and Jackson ended their relationship in 2004.