Eric Millegan (born August 25, 1974) is an American actor, best known for his role as Dr. Zack Addy on the Fox series Bones.
Millegan was born in Hackettstown, New Jersey, and raised in Springfield, Oregon. Eric attended high school at Springfield High School, where he was student body Vice President his senior year. He studied acting at the Interlochen Arts Camp at Interlochen Center for the Arts before studying musical theatre at the University of Michigan.
Millegan began his musical theatre career at age 7, in the 1981 Eugene Opera production of Menotti's Amahl and the Night Visitors. He continued with the company in several other productions, including Madame Butterfly, La Bohème, Carmen, and Hansel and Gretel. Millegan appeared on Broadway in the 2000 production of Jesus Christ Superstar.
In January 2005, he starred as Harold opposite Estelle Parsons' Maude in the world premiere of Tom Jones and Joseph Thalken's Harold & Maude: The Musical at the Paper Mill Playhouse in Millburn, New Jersey. In 2006, he returned to Eugene, Oregon, to play Frederic in Eugene Opera's production of The Pirates of Penzance. In August 2009, Millegan released a video on YouTube in which he comes out about his experiences living with rapid-cycling bipolar disorder.
Millegan is openly gay; in 2003, Out named him the "Hottest Up-and-Coming Openly Gay Actor" of the year.
Millegan married his long-time partner, Charles Michel, in New York City on June 28, 2012.
He announced his union on Twitter.