A man who becomes famous playing this role tries to flee from blinding spotlights and thinks to himself, "What do they want from me? I'm just an actor!" at the end of a film by Istvan Szabo. This character asks, "Who will feed you?" as he is crushed under rocks in a 2011 film that depicts him as a moneylender with a penis on his rear, and which was directed by Alexander Sokurov. This character shatters a mirror, causing the protagonist to become an old man again, in a film in which he is played by Emil Jannings. Andreas Teuber played this role opposite Richard Burton in a film in which Elizabeth Taylor makes a cameo as the shade of Helen of Troy. For 10 points, name this devil who bargains for the soul of the title 
A man who becomes famous playing this role tries to flee from blinding spotlights and thinks to himself, "What do they want from me? I'm just an actor!" at the end of a film by Istvan Szabo. This character asks, "Who will feed you?" as he is crushed under rocks in a 2011 film that depicts him as a moneylender with a penis on his rear, and which was directed by Alexander Sokurov. This character shatters a mirror, causing the protagonist to become an old man again, in a film in which he is played by Emil Jannings. Andreas Teuber played this role opposite Richard Burton in a film in which Elizabeth Taylor makes a cameo as the shade of Helen of Troy. For 10 points, name this devil who bargains for the soul of the title doctor in F. W. Murnau's Faust.