Joseph Mazzello, American actor, director, producer, and screenwriter
Joseph Francis Mazzello III (born September 21, 1983) is an American actor, director, and screenwriter. He is best known for his roles as Tim Murphy in Jurassic Park, Eugene Sledge in the HBO miniseries The Pacific, Dustin Moskovitz in The Social Network and Queen bass player John Deacon in the biopic Bohemian Rhapsody.