Stephen Lloyd is a character in the film Halloween: The Curse of Michael Myers.
Stephen is the son of Jamie Lloyd. He is shown as a baby in Halloween: The Curse of Michael Myers and is protected by Tommy Doyle after his mother is murdered. He is the result of an experiment by Dr. Terence Wynn who has been using Michael Myers and female patients of the institution to genetically create evil in its purest form.
His maternal relatives include Laurie Strode (grandmother/aunt in Producer's Cut), Michael Myers (great-uncle/father in Producer's Cut), Judith Myers (great-aunt/aunt in Producer's Cut), as well as both Mr. and Mrs. Myers (great grandparents).
In the Producer's Cut of Halloween: The Curse of Michael Myers it is shown that Wynn had impregnated Jamie with Michael's DNA, and that Stephen is both Michael's biological son and great-nephew.
Some of the Halloween fan films and/or fanfiction include an adult Stephen as the main character. Stephen is the grandson of Laurie, the great-nephew of John Strode, and the second cousin twice removed or third cousin of Danny Strode.