Adrian Grenier

Adrian Grenier

The Entourage star has a green-themed renovation TV series, Alter Eco, that follows the eco-makeover of his own home and offers tips for others aiming to green their lifestyles. He drives a Prius, of course, and has been known to tote a sign declaring “green is gold.” In 2008 he was awarded the Blue Sky Award for Environmental Activism at the Vail Film Festival.