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.