Originally a young boy, he was transformed into a "Docil"(Furry rodent creature) When he fell into a vat of Dark Eco. He acts as a sidekick to Jak in the Video Game "Jak II."

Daxter is Jak's best friend in the game 'Jak and Daxter the Precursor Legacy'. He fell into a pool of Dark Eco and got transformed into a 'Otsel',a furry little rodent. He is like Jak's sidekick in the games Jak and Daxter the Precursor Legacy, Jak II and Jak 3.