Matt Parkman/ Greg Grunberg

Greg Grunberg stars in NBC's Emmy Award-nominated ensemble drama series "Heroes" as Matt Parkman, a police detective with the ability to hear the thoughts of others. "Heroes" follows the lives of ordinary people who discover they possess extraordinary abilities.

Grunberg is best known as the lovable Eric Weiss on "Alias," where he spent four seasons thwarting the menacing plans of the world's most dubious villains. Audiences first fell in love with Grunberg when he starred as Sean in four seasons on "Felicity." He has appeared in multiple episode arcs on "NYPD Blue" and "Melrose Place," and has guest-starred on shows such as "Diagnosis Murder," "Murphy Brown," "Vengeance Unlimited," "Oh Baby," "Rescue 77," "Jersey," "Players," "Alright Already," "Ned and Stacey" and "Relativity."

In addition to his small-screen success, Grunberg has emerged as a thriving film actor. His feature-film credits include "Mission: Impossible 3" (directed by J.J. Abrams and starring Tom Cruise), "Malibu's Most Wanted," "Ladykillers," "Hollow Man," "Austin Powers: Goldmember," "The Muse," "BASEketball," "Trigger Effect" and "Dinner & Driving." He will next be seen in the independent action feature "Fast Glass," opposite Andrew Keegan.

Grunberg also worked for noted film producers Dino de Laurentiis and Joel Silver, and co-wrote and voiced the lead character in a computer-animated pilot for HBO. Recently, he has also helped to develop and star in a few pilots, including "The Catch" with creator-executive producer J.J. Abrams and "Grand Union."

A philanthropist by nature, Grunberg runs a charitable organization called "Hollywood Helping Hands," which auctions off pieces of artwork that are finger-painted by celebrities to benefit the Pediatric Epilepsy Project at UCLA, since his eldest son suffers from pediatric epilepsy. He currently lives outside Los Angeles with his wife, Elizabeth, and their three young sons. His birthday is July 11.

Abandoned by his father Maury at an early age, Matt grew up in Los Angeles, determined to become a police detective. Although the written exam held dyslexic Matt back from his dream job, he finally passed, with the help of wife Janice. Shortly thereafter, Matt manifested the ability of telepathy, only to learn that Janice had been cheating on him with his partner. When his abilities put him on the trail of serial killer Sylar, Matt's life changed forever. After a nasty run-in with the Company, Matt divorced Janice and moved in with Mohinder, determined to live a normal life. But as his abilities evolved to include precognition, and the ability to push thoughts and erase memories, Matt's life just got more complicated. After falling in love with speedster Daphne and then losing her to a government bullet, Matt was ready to throw in the towel. Luckily, Hiro and Ando introduced Matt to the son he didn't know he had. After reluctantly complying with Angela's plan to force Sylar to believe he's Nathan, Matt returns to Janice and the LAPD, determined to put his life back together. The only problem? Sylar is trapped inside Matt's head and he won't get out!

Read more about this character at Heroes Wiki.