Louie is a secondary protagonist in the Pikmin series, serving as Olimar's partner and co-worker. He first appears in Pikmin 2 – the only game in which he is a playable character in Story Mode. In Pikmin 3, he stays at the Koppaites' ship after being saved, twice, and appears as Olimar's partner in Bingo Battle, as well as a playable character in some missions. In Pikmin 3 Deluxe, he once again accompanies Olimar as a second leader in the Side Stories mode. He appears once again in the second act of Pikmin 4 with a more antagonistic role. Louie is relatively new to the shipping business and has a ravenous appetite. He was raised by his grandmother, who encouraged him to play with bugs, as well as eat them – an activity he seems to partake while on PNF-404.