In 2001 he provided the voice of Jamie in the short Soda Pop. The same year he made his television debut in the series 100 Centre Street. He starred as Ed Simone in the movie On_Line in 2002. He starred in The Phobic in 2006 and Lady Peacock in 2014. Millegan’s best known role came as Dr. Zack Addy in the series Bones from 2005 to 2010. Eric is openly gay and was named the “Hottest Up-and-Coming Openly Gay Actor” in 2003 by Out. He married his partner in 2012. In 2009 he released a YouTube video talking about his experiences with bipolar disorder.