Lieutenant Dunleavy is a character in HBO's Westworld. He is a member of the Confederados.
He was being repurposed at the Sector 19 Remote Refurbishment Facility, when Wyatt's gang arrived. Dolores Abernathy demanded Technician Phil to reactivate Dunleavy, so that he can take them to his former unit, now being lead by Major Craddock. He led them to a farm house, where the other Confederados were then all killed and reacitvated as followers of Dolores Abernathy.
Like most Confederados, Dunleavy was most likely also quite violent and a warmonger.