Born in Danvers, Massachusetts in 1971, Dennis was one of five sons and grew up in and around Boston, Puerto Rico and New Jersey. His father was born and raised in Havana, Cuba; and his mother was born and raised in Roxbury, MA. Marc received his B.F.A. from Tyler School of Art of Temple University in Philadelphia, PA and his M.F.A. from The University of Texas at Austin. He lives and works in Brooklyn, New York.