He is presented as very self serving, talking about his taking advantage of other people as a kind of parasite, he takes and takes even if the other person is effected negatively. When interacting with Ferdinand about the duchess, he immediately presumes he is to kill someone, as he asks ‘who’s throat shall I cut’ as soon as gold is mentioned. He doesn’t seem to care who he may have to kill, only that there’s some kind of gain for him. This presents him as violent, desensitized to killing, and desperate for money