Best Known As: Television Actor

Gist:  Adrian Grenier (, |yay}}, born July 10, 1976) is an American actor, musician and director. He is best known for his lead role on the HBO original series, Entourage, as Vincent Chase.

Life Facts:  Grenier was raised in the New York City borough of Queens by his mother, Karesse Grenier, a real estate agent. His mother met his father, John Dunbar, in a commune in the 1970s and the two were never married. Grenier is of Apache Native American and European descent. He attended Fiorello H. LaGuardia High School of Music & Art and Performing Arts and went to Bard College where he studied drama.

In 2005, Grenier began dating Sports Illustrated swimsuit model Melissa Keller. The couple dated on and off for two years.

In August 2007, Grenier was rumored to be dating socialite Paris Hilton after he was photographed at her home in Malibu while shooting a documentary he is producing about paparazzi. He was also seen and photographed with her at various clubs in New York City. Grenier denied the rumors in an interview on The Howard Stern Show.

In 2008, Grenier began dating actress Isabel Lucas. In August 2008, Grenier and Lucas broke up shortly after Lucas was involved in a car accident with Shia LaBeouf.

Career Facts:  In 1997, Grenier made his film debut in the independent drama Arresting Gena. In 1999, he played opposite Melissa Joan Hart in Drive Me Crazy as well as in Britney Spears' music video "Crazy", and in 2001, starred in James Toback's Harvard Man. In 2002, Grenier made his directorial debut with the documentary, Shot in the Dark. The documentary chronicles his years-long search for his father, with whom Grenier's mother broke up when Adrian was still a baby. Grenier and Dunbar remained estranged for 18 years, and in 2001, Adrian began work on the documentary in an attempt to forge a relationship with Dunbar. The two eventually reunited and maintain a warm relationship. HBO premiered the documentary on June 3, 2007.

In 2004, Grenier landed the lead role in the HBO series Entourage, which has brought him his most substantial notice and success.

On June 2, 2008, Grenier's new show, Alter Eco, premiered on Planet Green. The show features the actor and his team of green experts showing changes that can be made to become more eco-friendly.

In addition to being an actor and filmmaker, Grenier is also a musician, playing guitar, drums, French horn, and the piano. He is a member of two New York bands, lead singer in Kid Friendly and drummer in The Honey Brothers.