Movie
Description
Medama Oyaji manifests as a yōkai resembling an anthropomorphic eyeball with a miniature body, typically unclothed. Originally an adult Ghost Tribe member, he contracted a "melting disease," leading him to wrap his deteriorating form in mummy-like bandages. After death and his pregnant wife Iwako’s burial, his spirit animated his sole surviving eyeball, which emerged from the grave. This transformation stemmed from devotion to his posthumously born son, Kitarō. While his backstory often unfolds in the early 1960s, certain adaptations like a live-action film relocate it to the Edo period.

Physically, he conceals a retractable mouth beneath his eyeball head, lacks teeth, and features an eyelid rendered as a simple line over his pupil. He exhibits regenerative prowess, recovering from crushing, deep-frying, or flattening, and endures without sustenance for up to a decade. Daily rituals include bathing in small vessels like teacups or bowls, sometimes using liquids such as sake, cola, or coffee, reflecting his cleanliness. He consumes morning dew, cherries, plums, and fish eye soup.

His core role involves leveraging vast yōkai lore, occult knowledge, and insight into supernatural weaknesses—accumulated during pre-Kitarō travels—to aid his son in mediating human-yōkai conflicts. A personal connection with Enma-Daiō, ruler of the afterlife, grants him access to the spirit world. His personality centers on intense paternal concern, frequently voicing anxiety over Kitarō’s safety.

Adaptations diversify his portrayal: early anime depicts him as doting and overprotective, while the third series introduces pupil-emitted beams to unveil hidden writings and shows support for Kitarō’s human romance—contrasting versions where he opposes such bonds due to human lifespans. The 2018 anime reveals his pre-decay humanoid form: a tall, gray-haired figure resembling Kitarō, one eye obscured by hair, emphasizing guilt over burdening his son with caretaking. In the darker *Hakaba Kitarō*, he appears bandaged pre-eyeball, displaying abrasive frustration toward Kitarō’s irresponsibility and verbally abusing allies like Nezumi-Otoko. His fifth anime iteration adds comedic traits like firework phobia and modern trend interest while reducing romantic-life interference.

Beyond Kitarō, he interacts with yōkai like Neko-Musume, initially praising her cooking before retracting after witnessing her volatility. His late wife Iwako surfaces in backstories of their seclusion and deaths. Artifacts include a silk hat from English demons and a single shoe from Santa Claus. Catchphrases encompass concerned exclamations ("Oi! Kitarō!"), bathing contentment ("Ahhh, this is nice!"), and distinct cries ("To-ho-ho!").