What role does Mephistophilis play in Doctor Faustus Mephistophilis is a key character in Christopher Marlowe s - Doctor Faustus written in or He is a devil who serves Lucifer He becomes Faustus s servant for years when Faustus makes a deal with Lucifer Mephistophilis tempts Faustus and makes sure he remains in sin A Devil and Lucifer s Servant Mephistophilis comes to Faustus when he tries to summon a devil He tells Faustus that he does not appear because of Faustus s magic but because he heard Faustus curse God This shows that devils are always looking for sinners Mephistophilis helps Faustus to make a deal with Lucifer He sells his soul in exchange for years of unlimited power and wealth After years Faustus s soul will be taken to hell Mephistophilis is loyal to Lucifer He says I am a servant to great Lucifer He becomes angry when