Prussia (AKA East Germany) in the anime, manga and web comic Hetalia: Axis Powers.
Prussia, one of the most infamous character of the series, has white hair and red eyes. His uniform changes often, depending on the era. Prussia is extremely egotistical and self-centered. Prussia refers to himself as "Oresama", and keep a journal. Most of the entries in his journal consist of "Today I was so awesome" or "I am awesome". Prussia loves food and beer. His younger brother and drinking buddy is Germany, who he refers to as "West". Prussia is loud and obnoxious. He also appears to have a small yellow bird following him around that has been nicknamed: Gilbird.
It can be concluded that he is sadistic since he takes pleasure in humiliating Austria every chance he gets, even going so far as to openly mention that he wanted a painter to immortalize the moment when he defeats Austria in the first battle of the Maria Theresa Arc of the anime. He also frequently attempts to make Austria beg for mercy after he had seized Silesia and forced Austria into battle. Even though he normally refers to Austria as a "stupid aristocrat", he can be seen freeloading off of and stalking Austria. When he was younger, he had a rivalry with Hungary believing that she was a boy. Although, when he found out her true gender after groping her chest (believing it to be a weak spot), he decides that it was a "sin" and was shown begging God for forgiveness in a chapel.