A bright, expressive child actor of TV and film with impressive range, Joseph Mazzello gained widespread attention as Tim, the grandson of Richard Attenborough, who is beset by dinosaurs in "Jurassic Park" (1993). His previous credits include "Presumed Innocent" (1990) and "Radio Flyer" (1992), as one of two brothers dealing with an abusive alcoholic stepfather. Working with Sir Richard in Spielberg's mammoth blockbuster led to a supporting role in the more modest, Attenborough-directed "Shadowlands" (1993) as the reserved American son of a professor (Debra Winger) who falls in love with
