In "Batman R.I.P.", a past hallucination induced by Professor Milo's gas is revealed to have inspired Bruce Wayne to create the 'back-up' personality of the Batman of Zurr-Enn-Arrh, a more ruthless Batman personality designed to take over in the event of Bruce Wayne being psychologically attacked in such a manner as to render Batman out of action.
professor | Professor | The Nutty Professor | Professor Moriarty | Professor Green | The Nutty Professor (1996 film) | Milo Ventimiglia | Milo | The Absent-Minded Professor | Quain Professor | Milo Đukanović | Large Professor | Venus de Milo | Milo Manara | Regius Professor of Physic | Professor Longhair | Nutty Professor II: The Klumps | Milo of Croton | Milo Hastings | Professor X | Professor of Mathematics, Glasgow | National University of Singapore University Professor | Milo, Oregon | Milo Milunović | Milo Hamilton | Gardiner Professor of Oceanic History and Affairs | Andrea Romano (professor) | Woodwardian Professor of Geology | Whewell Professor of International Law | Walter Raleigh (professor) |