King of Northern Europe at your service~!
Denmark is said to be full of youthful vigor and humor, though he is also very stubborn and doesn't listen very well to others. As a result, he is known to be very controlling, bossy, and demanding, to the point where it is hard to get along with him.
He declares himself to be the "King of Northern Europe", and speaks in an Ibaraki dialect. He is also a heavy drinker
FINLAND
Finland also lived with Denmark, but made the decision to flee with Sweden, due to having grown tired of being surrounded by stronger nations and wanting to be free.
NORWAY
A childhood friend of Denmark's, who he feels rather close to and strongly about, believing that Norway sees him the same way as a "best friend." However, he is unaware of Norway's bluntness and subtle ways of teasing and insulting him.
SWEDEN
Sweden lived with him for a long period of time, but after being unable to stand his behavior and lifestyle, finally snapped and rebelled, leaving him behind.
Denmark is shown in a brief shot (non-speaking) in Episode 69 during Finland's explanation of why he is traveling through the woods with Sweden - the two of them having escaped from under Denmark's rule. Later in the explanation, a small version of Denmark is seen as part of a map alongside Finland, Sweden, Poland, Lithuania, and Russia.
He makes his speaking debut in Episode 79, which adapts To Create Better Products in Northern Europe. In the episode he is shown selling dolls made by Finland and Sweden, with Norway showing up and remarking that Denmark is being loud and annoying. However, Denmark doesn't seem to understand that Norway is insulting him, and responds with enthusiastic cheer. He is voiced by Hiroshi Shimozaki.