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.
Description above is from the Wikipedia article Joseph Mazzello, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Known For

Unexpected
Bob
2022

Bohemian Rhapsody: Recreating Live Aid
Self
2019

Bohemian Rhapsody- The Complete Live Aid Performance
John Deacon
2019

The Look and Sound of Queen
Self
2019
Rami Malek: Becoming Freddie
Self / John Deacon
2019

Bohemian Rhapsody
John Deacon
2018

Undrafted
Pat Murray
2016

American Crime Story
Paul Begala · (3 episodes)
2016
Dear Sidewalk
Gardner
2013

G.I. Joe: Retaliation
Mouse
2013

Elementary
Griffin · (1 episode)
2012

Coma
Geoffrey Fairweather · (2 episodes)
2012
Allison
Joe
2012

First Kiss
Guy
2012

Person of Interest
Daniel Casey · (2 episodes)
2011

Return to Jurassic Park
Self
2011

The Social Network
Dustin Moskovitz
2010

Justified
Billy St. Cyr · (3 episodes)
2010

The Pacific
Eugene Sledge · (10 episodes)
2010

Beyond All Boundaries
Eugene B. Sledge
2009

Lost Kubrick: The Unfinished Films of Stanley Kubrick
Self
2007

The Pixar Story
Tim Murphy (archive footage)
2007

Matters of Life and Death
David Jennings
2007

The Sensation of Sight
Tripp
2006

The Hollow
Scott
2004

Raising Helen
Prom Date Peter
2004

Without a Trace
Sean Stanley · (1 episode)
2002

Wooly Boys
Charles
2001

CSI: Crime Scene Investigation
Justin Lamond · (1 episode)
2000

Providence
Tony · (2 episodes)
1999

Simon Birch
Joe Wenteworth
1998

Star Kid
Spencer Griffith
1997

The View
Self · (1 episode)
1997

The Lost World: Jurassic Park
Tim
1997

Three Wishes
Tom Holman
1995

The Making of 'Jurassic Park'
Self / Tim Murphy
1995

The Cure
Dexter
1995

A Father for Charlie
Charlie
1995

The River Wild
Roarke Hartman
1994

Shadowlands
Douglas Gresham
1993

Jurassic Park
Tim
1993

Desperate Choices: To Save My Child
Willy Robbins
1992

Jersey Girl
Jason
1992

Radio Flyer
Bobby
1992

Presumed Innocent
Wendell McGaffney
1990

Unspeakable Acts
Jason Harrison
1990

The Cast
Taylor Johnson

LIVE with Kelly and Mark
(1 episode)
1988

Bambi-Verleihung
Self · (1 episode)
1948