Their parents are Ginnie Y Joseph Mazzello, Jr, who own a dance school. He has an older sister named Mary and a younger brother named John, who has also devoted himself to acting.
Joseph studied at the Our Lady of Lourdes High School, and in 2005 he graduated with a degree in Film and Television from the University of Southern California.
He made his debut before the cameras in 1990 with a small job in the telefilm “Unspeakable Acts“, Which was followed by roles in the movies”Presumed innocent“, starring Harrison ford Y Brian Dennehy, “The force of illusion“, with Elijah Wood Y Tom Hanks, “Jersey Girl“, with Dylan mcdermott and the television tape “Desperate Choices: To Save My Child”.
It was in 1993 when he gained public recognition by playing Tim murphy at the box office “Jurassic Park: Jurassic Park“And 4 years later he repeated this role in its sequel,”Jurassic Park 2: The Lost World”.
Another of his important roles was that of Dexter in the drama “Let nothing separate us”.
His remaining big screen credits include the films “Twilight lands“, with Anthony Hopkins, “Wild river“, starring Meryl streep Y Kevin bacon, “Star kid“,”The unforgettable Simon Birch“, with Ashley judd Y Oliver Platt, the comedies “Wooly boys” Y “Mom to force“, with Kate hudson Y Joan Cusack, and soon he will be seen next to Rashida Jones Y Jesse eisenberg in the drama “The Social Network”.
In TV, Joseph was a guest in the series “Stories from My Childhood“,”Providence“,”CSI: Crime Scene Investigation” Y “Without a trace”, And since 2010 he can be seen in the role of Eugene B. Sledge on “The Pacific”.
Mazzello He has also ventured as a director in the film “Matters of Life and Death“, Which he starred alongside Rachel Leigh Cook.