Akira Kamio

The Prince of Tennis manga and anime series has a large cast of fictional characters created by Takeshi Konomi. Many of have appeared in the musical and film adaptations. The cast of the series is largely made up of the members of the various tennis teams for the schools portrayed in the series, their coaches various family members and supporters.

The main character of the series is Ryoma Echizen, a 12 year old tennis prodigy who joins the Seishun Academy tennis team at the beginning of the series. The main cast is rounded out with the other 8 regular players for Seishun, all of whom have various special abilities at playing tennis. Beyond them, there are many rival schools whose players reappear during the course of the series.

The protagonists of the series all attend Seishun Academy (青春学園, Seishun Gakuen?), or Seigaku (青学?) for short. The school is famous for its talented tennis club in which the series' leading protagonist, Ryoma Echizen, is enrolled into the school by his father, Nanjiro Echizen, a former professional tennis player. Although Seigaku is well known for their tennis skills in the past, the absence of Nanjiro Echizen who used to go to the school throws the team into somewhat of a slump, leaving them unable to make it to Nationals over the next several years until a first year, Tezuka, joins the team. The team slowly reforms, and Seigaku manages to pull off its first National victory after Ryoma joins.

At the end of Shin Prince of Tennis Chapter 37, Tezuka is noted to have unlock the last door of Muga No Kyouchi and has stepped off the training camp to become a Pro in Germany.

Fuji is a third year student at Seishun Academy. The middle child of three, he has an older sister, Yumiko, who is very attractive and admired by his friends; his younger brother is Yuta, who was a student a Seigaku, but transferred to St. Rudolph. Fuji is a leap year baby, only getting to properly celebrate his birthday on February 29. He is given the title "tensai", or genius, due to his tactical skill on the tennis court.

Source: Wikipedia