Germany is one of the main characters in Hetalia: Axis Powers: Paint it, White and Hetalia: Axis Powers (anime). In 2007 and 2008, Himaruya gave human names to some of the characters, and Germany got the name Ludwig, without a last name, but in fanon works his last name is usually Beilschmidt, as that is Prussia's last name.
Germany is the tallest of the axis at 5'11 inches or 180cm. He has pale skin, pale blonde hair that is usually slicked back and cornflower blue eyes. He is also has the appearence of a stereotypical Aryan man.
Germany is a tought, very serious and efficient man who abides by the rules, and sometimes has trouble relaxing. He detests mistakes, and is a neat freak. He also tends to have a pessimistic attitude towards things.
Prussia Prussia is Germany's older brother and drinking buddy, and Prussia also lives with Germany. The two have a pretty good bond, but they seem to annoy eachother. Overall thought, they get along pretty well. They can be shipped as Germancest.
Italy Italy is Germany's best friend, and they met during WW1 when Germany found Italy in a crate of tomatoes. Italy tends to annoy Germany, but they still have a close bond, much to the dislike of Romano, Italy's older brother. They can be shipped together as Gerita.
Romano Romano has a strong dislike towards Germany, to the point where he would throw a grenade at him. Germany, on the other hand is neutral towards Romano, not finding him a threat. The two can be shipped together as Germany/South Italy