Andrew "Andy" Harris is the son of Jackie and Fred. He was born in 1994 ("Labor Day") and breastfed at the altar while Jackie was marrying Fred. ("Altar Egos") His last name (Fred's surname) is unrevealed. He was played alternately by twin brothers Garrett & Kent Hazen.
Andy was the ring bearer in Darlene and David's wedding. ("The Wedding"). Jackie likes to dress him up in outfits Fred deems to be feminine. D.J. makes it a point to spend time with his cousin and act as a big brother to him because they're both boys and Andy has no siblings. However, Andy and his cousin Jerry often act like brothers and took naps together in the same crib, much as their mothers, Jackie and Roseanne, did as kids.
Andy appears in eight episodes of the series in Seasons 7–8, and later taken over by Trevor and Tyler Battaglia in Season 9, he was shown to develop the beginnings of a mischievous streak similar to his cousin D.J.'s at his age.
His whereabouts since 1997 have never been mentioned.