
Joseph Mazzello
Biography
Joseph Francis Mazzello (born September 21, 1983), sometimes credited as Joe Mazzello, is an American actor, director, and screenwriter. He is best known for his roles as Tim Murphy in Jurassic Park (1993), Eugene Sledge in the HBO miniseries The Pacific (2010), Dustin Moskovitz in The Social Network (2010) and Queen bass player John Deacon in the biopic Bohemian Rhapsody (2018).
His first film appearance was a small role in 1990 film Presumed Innocent. He then went on to appear in Radio Flyer, Jersey Girl and the TV film Desperate Choices: To Save My Child in 1992. In 1993, he gained further recognition after starring in Steven Spielberg's Jurassic Park as Tim Murphy and in Richard Attenborough's Shadowlands. He later appeared in 1994's The River Wild. In 1995, he had roles in The Cure and Three Wishes. His first film role in 2001 was in Wooly Boys. In 2002, he made his television debut on Providence. He then appeared on CBS' hit shows CSI: Crime Scene Investigation and Without a Trace. Afterwards, he appeared in Raising Helen (2004), The Hollow (2004), The Sensation of Sight (2006), and the short film Beyond All Boundaries (2009). He made his directorial debut with the short film Matters of Life and Death (2007).
In 2010, Mazzello played Dustin Moskovitz in the David Fincher-directed film The Social Network. His performance was well-received by critics, and he and the cast were nominated for several awards. He went on to appear in G.I. Joe: Retaliation as G.I. Joe operative Mouse in 2013, and starred as John Deacon in the 2018 Queen biopic, Bohemian Rhapsody.
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Filmography

Monument
2026
as Amnon Rechter

Unexpected
2022
as Bob

Bohemian Rhapsody: Recreating Live Aid
2019
as Self

The Look and Sound of Queen
2019
as Self
- No poster
Rami Malek: Becoming Freddie
2019
as Self / John Deacon

Bohemian Rhapsody
2018
as John Deacon

Undrafted
2016
as Pat Murray
- No poster
Dear Sidewalk
2013
as Gardner

G.I. Joe: Retaliation
2013
as Mouse

Allison
2012
as Joe

First Kiss
2012
as Guy

Return to Jurassic Park
2011
as Self

The Social Network
2010
as Dustin Moskovitz

Beyond All Boundaries
2009
as Eugene B. Sledge

Lost Kubrick: The Unfinished Films of Stanley Kubrick
2007
as Self

The Pixar Story
2007
as Tim Murphy (archive footage)

Matters of Life and Death
2007
as David Jennings

The Sensation of Sight
2006
as Tripp

The Hollow
2004
as Scott

Raising Helen
2004
as Prom Date Peter

Wooly Boys
2001
as Charles

Simon Birch
1998
as Joe Wenteworth

Star Kid
1997
as Spencer Griffith

The Lost World: Jurassic Park
1997
as Tim