Banjo was one of the first Rareware characters. He was one of the most popular. His game "Banjo Pilot" actually took place within the game "Diddy Kong Pilot."
He is an interesting early video game star - you should definitely read more about him and the rest of the Rareware crew!
The picture below is of Banjo's sidekick Kazooie who is supposed to be a girl but I think it's a boy
Silas: Leo, it's a girl!
Leo: It's a boy!
Banjo and Kazooie get along really well and work together to solve the game.