Jesse Adam Eisenberg (born October 5, 1983) is an American actor and playwright. He made his screen debut with the comedy-drama television series Get Real (1999–2002). After his first leading role, in the film Roger Dodger (2002), he appeared in the movies The Emperor's Club (2002), The Squid and the Whale (2005), The Living Wake (2007) and The Education of Charlie Banks (2007).

In 2007, Eisenberg was honored with the Vail Film Festival Rising Star Award for his role as Mills Joquin in The Living Wake.In 2009, he starred in the comedy drama Adventureland and the horror comedy Zombieland, for which he won critical acclaim. He then played Facebook founder Mark Zuckerberg in The Social Network (2010), for which he received a Golden Globe and Academy Award nomination in the Best Actorcategory. He also starred in Holy Rollers (2010), which was nominated for the Grand Jury Prize at the 2010 Sundance Film Festival. Since then, he has voiced the main character, Blu, in the animated films Rio (2011) and Rio 2 (2014), and starred in the comedy 30 Minutes or Less (2011) and the caper filmNow You See Me (2013). He will reunite with Kristen Stewart in the upcoming action-comedy film American Ultra which filming begins in April 2014. He will portray Superman villain LexLuthor opposite Henry Cavill and Ben Affleck in Batman v Superman: Dawn of Justice, which will be released in 2016.

In 2012, he starred alongside Melissa Leo in Why Stop Now, a drama about a drug addict mother and her piano prodigy son, and in the romantic comedy To Rome with Love. Also in 2012, he filed a $3 million lawsuit claiming he was exploited by the producers of the direct-to-DVD movie, Camp Hell. According to the lawsuit, in 2007 Eisenberg agreed to appear in Camp Hell as a favor to his friends. He was on set for only one day of filming, and logged only a few minutes of total screen time. Because he was only minimally involved in the movie, he was surprised to see that his face was prominently featured on the cover of the DVD, implying that he starred in the film. His lawsuit asserts various California law causes of action, including claims for unfair business practices and publicity rights.

In 2013, Eisenberg reunited with Woody Harrelson for the magician crime thriller Now You See Me. Eisenberg plans to write for stage and screen. He starred in Richard Ayoade's comedy, The Double, which was shot in 2012, and reprised his role as Blu in Rio 2 (2014). In November 2013, it was announced that he will star alongside Kristen Stewart in American Ultra, an action comedy.