Wario is the arch rival of Mario and the antihero of the Wario series. He is extremely greedy and will do anything to get money, be it stealing or going on an adventure (but mainly the latter). He is also a miser, as he never lets anyone touch his treasure. He is also gluttonous and addicted to sweets. Alas, his greedy nature overtakes him and he goes out of control occasionally, even going as far as to double-cross his friends. Like Mario, he has many Italian traits. 

Voice: Try imitating the Wario voice clips by Charles Martinet