As a model, he was the face of the Burberry mens' fashion campaign in 2004.
He is the son of Jonathan Dancy, a philosophy professor and Sarah Dancy.
The former My So-Called Life star met the Almost Famous rocker on the set of Stage Beauty in 2003, which prompted him to leave his girlfriend of nearly eight years, Mary-Louise Parker, who was seven months pregnant with their son.
In 2005, he starred as Adam Raki in Adam, an independent film which premiered at the Sundance Film Festival in 2009 and follows the story of a young man with Asperger syndrome. In theatre, Dancy has appeared in MCC Theater's The Pride, written by Alexi Kaye Campbell, at the Lucille Lortel Theatre in New York City.
The off-Broadway production was directed by Joe Mantello and co-starred Ben Whishaw and Andrea Riseborough.
" I’m trying to get through it but I’m by myself every night and every morning and no one, nothing helps. "I don’t know what you thought, if you had a daughter or a wife or if my little drama was a hangnail compared to your life," she writes.
"What I wish I could tell you is that I know it may have been.