"The original Harry Takayama, who was one of Stephanie's friends in the early seasons — we wanted him to come back for an episode, but he wasn't able to come"
"Hardcore "Full House" fans may remember Harry Takayama, Stephanie's friend from the family sitcom's second and third seasons. He was played by an eight-year-old Nathan Nishiguchi."
"Stephanie refers to him as her husband on "Fuller House." That's because the two got married in an adorable backyard ceremony on the 1989 episode "Middle Age Crazy.""
"Harry Takayama (played by Nathan Nishiguchi in Full House, and Michael Sun Lee in Fuller House) is the first on-screen friend of Stephanie Tanner, first appearing in the season two episode, "D.J.'s Very First Horse.""