Chiaotzu

Chiaotzu (餃子, Chaozu) is a white-skinned, red-cheeked little human who is constant companions with Tien Shinhan, his best friend. Just like Krillin, Chiaotzu does not have a visible nose. He is first introduced near the end of the Fortuneteller Baba Saga in the anime. Back when he was a Crane School student, he formed a rivalry with Turtle School student Krillin for a while in the 22nd World Martial Arts Tournament. Along with Tien, he quickly switches sides after seeing the folly of his master's teachings, and becomes a trusted ally and Z Fighter. He is a fairly quiet, but brave psychic martial artist who is willing to help out his friends whenever possible and is highly devoted to his training with Tien.

Compared to other Dragon Ball characters, relatively little is revealed about Chiaotzu. It is known that he was a student along with Tien of Master Shen, and he specializes in skills that involve telepathy and telekinesis. In the game Dragon Ball Z: Budokai Tenkaichi 2, Chiaotzu's history says that he is a member of a military family.
In the movie Dragon Ball: Mystical Adventure, which shows an alternate version of most of the characters, Chiaotzu appears as the king of the Mifan Empire with Tien as his bodyguard. In the film, Chiaotzu is manipulated by Shen, who he believes is helping him reunite with his "wife", Ran Ran, who is revealed after the climax to be Chiaotzu's beloved doll. Although this is non-manga, at the end of the Frieza Saga, Chiaotzu is referred to as "Emperor Chiaotzu" by the narrator in the English anime. This was absent in the original Japanese anime and manga, however.
Chiaotzu is a human who possesses a few different traits than most characters in the series, such as plain white skin and red cheeks. He is based on Chinese vampires (the Jiang Shi), as the similarities are displayed in both his appearance and also when Chiaotzu performs some of his attacks. Jiang Shi are described as having white skin, red cheeks, and wearing an outfit from the Qing Dynasty. These ghosts cannot walk (only hop), and they always keep their arms stretched out in front of them. These qualities are all referenced in Chiaotzu to some extent: when first encountered, Chiaotzu flies more often than walks and his attacks are executed by stretching his arms. Chiaotzu's outfit also looks very close to a Qing one.
Chiaotzu has demonstrated an inability to quickly solve basic addition problems or grasp some jokes. Despite being quiet and powerful, he also has a childish nature; mocking Krillin for shortcomings that Chiaotzu himself has when they first meet.

Information from:
http://dragonball.wikia.com/