HomePeople Biography and filmographyWilliam Ontiveros Biography unavailable on TMDB. Movies (3)TV shows (2) Movies (3) Harry and the Hendersons1987 · Sgt. Mancini A Stranger Waits1987 The Prodigal1983 · Landlord TV shows (2) Knots Landing: Back to the Cul-de-Sac1997 · Stan Mendoza 21 Jump Street1987 · Mr. Munez, Guard