Apollo is a deity and the former head of the Apollo Familia. He stands tall and handsome, with blonde hair resembling condensed sunlight, depicted as scarlet red in the anime, and typically wears a green laurel wreath. His personality is marked by extreme persistence once fixated on an individual, pursuing them relentlessly until they join his Familia. This trait caused Hestia to develop a strong aversion toward him due to his repeated past advances. He forcibly recruited many members, traveling across nations to acquire those who caught his interest. Apollo exhibits bisexuality, openly recruiting members of any gender based solely on physical appeal, though he shows particular favor toward young men. His motivations are partly driven by overtly perverse tendencies, evident in his anticipation and excitement when fantasizing about Bell Cranel before the War Game.

Despite his predatory recruitment, Apollo displayed genuine care for his Familia members. He provided high-quality equipment and treated them well, especially those he favored. He deeply mourned deceased lovers, carrying their accessories as mementos and spending days grieving. Apollo targeted Bell Cranel after becoming captivated by his potential and appearance, orchestrating conflicts to force Hestia Familia into a War Game. This included destroying their church and publicly provoking Bell and his allies. When Hestia refused his initial challenge, Apollo manipulated events to impose a War Game with Bell’s ownership as the wager. His Familia was defeated, resulting in Apollo’s exile from Orario and the dissolution of his Familia, with its assets transferred to Hestia Familia.

Following his canonical exile, Apollo appeared in non-canon mobile game events like *Memoria Freese*'s "Steamy Scheme" and "Aedes Vesta." The author expressed interest in expanding Apollo’s role in future *Familia Chronicle* stories after positive reception to the anime’s War Game arc. Apollo is named after the Greek god associated with the sun, healing, prophecy, archery, and music.