Justin Chambers was born and raised in Springfield, Ohio. Discovered on a subway in Paris, he began his career as a professional model working throughout Europe, Japan and the U.S. with contracts at Calvin Klein and Armani, among others.
Setting his sights on acting, Chambers moved to New York and studied for four years at H.B. Studios and Ron Stetson Studios. His training garnered him several television roles, including in Another World, New York Undercover, Four Corners with Ann-Margret, and the Hallmark Hall of Fame production of Rose Hill, with Jennifer Garner.
Described as "part James Dean, part Marlon Brando" (Harper's Bazaar, 1998), Chambers got his big break when he was cast in his first feature film, Liberty Heights, directed by Barry Levinson. As a privileged but good-hearted troublemaker, he proved that he had the acting chops to hold his own opposite co-star Adrien Brody, and soon went on to play the lead role of D'Artagnan in Universal's action/adventure The Musketeer. Additionally, Chambers starred in the hit romantic comedy The Wedding Planner, with Jennifer Lopez and Matthew McConaughey; the thriller The Zodiac, with Philip Baker Hall; and HBO's critically acclaimed Hysterical Blindness, in which he played Uma Thurman's love interest. Chambers starred in Broken City, with Mark Wahlberg and Russell Crowe.
He currently resides in Los Angeles with his wife and five children.