Louie (Pikmin)

Louie is Olimar's brother from the planet Hotocate. He is one of the player characters in the game. He only appears in Pikmin 2.

Pikmin 2
The President convinces Olimar and Louie that if they collect 10,000 Pokos, they'll leave Hotocate. If Olimar and Louie have collected 10,000 Pokos by going on adventures, there will be a cutscene. Olimar left his Pikmin by himself and notices Louie is missing. Olimar talks to the President of Hotocate to find Louie. Louie is found in the Dream Den in Wistful Wild in the Titan Dweevil's den. If Olimar rescues Louie and collected every treasure, the game will have a good ending.