Steven Hyde
Steven Hyde, known simply as Hyde by his friends, is a fictional character from the Fox sitcom That '70s Show, portrayed by Danny Masterson. He is Eric Forman's (Topher Grace) best friend and by the end of season one, his de facto adopted brother. Hyde represents the rebel adolescent of the seventies that was suspicious of government and corporations.
Storylines
Hyde was abandoned by his mother, Edna (Katey Sagal), who only appeared in three episodes, two of which featured only her screaming voice calling from inside Hyde's house. His stepfather, Bud (Robert Hays), had left some years earlier. A half brother was mentioned once in a Season 8 episode, though not much is known about him.
Hyde's best friend, and later foster-brother, is the nice, geeky Eric Forman. The two share probably the closest friendship out of the group, shown by how they care and rely on one another and one another's advice. When Hyde's mother left town at the end of the first season, Eric tried to persuade his parents to do something about his best friend's living conditions and thus Hyde was invited to live with the Formans, which Hyde does from season one until the series' end. He is adopted into the Forman family, and lives in the basement of their house. Since there are no extra bedrooms, he sleeps in a small storage room on a cot. When Red decided to kick Hyde out after an arrest for possession of drugs, Eric attempts to come to his rescue.