Joe the Condor, born George Asakura, is the son of Galactor scientists Giuseppe and Katarina Asakura. Assassins killed his parents when they tried to defect, leaving young George the sole survivor. Rescued by Dr. Kozaburo Nambu of the International Science Organization, his death was faked to shield him from Galactor; renamed Joe, he grew up under Nambu's guardianship.

As second-in-command and weapons specialist of the Science Ninja Team, Joe employs a condor-inspired fighting style focused on acrobatics and projectile weapons, particularly his feather shuriken. He pilots the high-speed Condor Machine, equipped with Gatling guns and Bird Missiles.

Driven by a personal vendetta against Galactor, Joe's headstrong nature often leads him to favor aggressive tactics over negotiation, clashing with leader Ken Washio's defensive strategies. Despite his cynical exterior, he holds deep loyalty to the team and their mission. His tragic past fuels a willingness to sacrifice himself, even disregarding medical advice to keep fighting.

In *Infini-T Force the Movie: Farewell, Friend*, Joe confronts Galactor alongside other heroes. This depiction presents him solely as an ordinary human, omitting later cyborg enhancements. His core backstory, including his parents' assassination and rescue by Dr. Nambu, remains consistent.

His relationship with Ken Washio involves frequent methodological clashes but also mutual respect and a bond forged through shared trauma and training under Dr. Nambu. Joe maintains a connection to Nambu, who tolerates his temperament understanding the trauma of his past.