Marshall is a lecturer in the Department of Theatre at UNC Wilmington. He holds an M.F.A. in Dramaturgy from the A.R.T./MXAT Institute for Advanced Theater Training at Harvard University and a B.A. in Theater Studies from Duke University. He has worked as a dramaturg on productions for the American Repertory Theater, Burning Coal Theatre Company, Manbites Dog Theater, and Little Green Pig Theatrical Concern. He is the author of Jonson: Volpone and the editor of Staging Ben: A Collection of Essays on the Theatricality of Jonson's Plays. For LG Pig: (Actor) Maccountant; (Dramaturg) Jane Eyre.