A fictional character of the 'Marvel Universe', the Marvel Comics character debuted in Marvel's "New Avengers" #4 (March 2005), created by Brian Michael Bendis and David Finch.
Chicago-born Hill was the former Director of the planetary defense/intelligence service 'S.H.I.E.L.D.', joining the US armed forces, before becoming an agent of the organization.
After S.H.I.E.L.D. Director 'Nick Fury' went into hiding, Hill was appointed interim Executive Director, with a 'Life Model Decoy' of Fury, regularly used in public to maintain an illusion of normalcy within the Directorate's ranks.