Igor serves as the recurring proprietor of the Velvet Room, a metaphysical space existing between consciousness and unconsciousness. He possesses a distinctive appearance with an elongated nose, pointed ears, and a tall, skeletal frame, typically dressed in formal attire including a black suit and white gloves. His origins trace back to being a handmade doll brought to life through a magical ritual. This background leads him to contemplate his existence and humanity, prompting him to create assistants like Elizabeth and Margaret to explore similar existential questions. Across multiple iterations, including the *Persona 3* continuity, his function remains consistent: he guides individuals who have formed contracts with the Velvet Room, offering cryptic insights about their journeys, impending trials, and potential dangers while maintaining a neutral stance; he rarely intervenes directly or issues explicit warnings. Within *Persona 3*, Igor appears exclusively to the protagonist, Makoto Yuki, during dreams or trance-like states. Upon Makoto's arrival at Iwatodai, Igor facilitates a contract requiring the protagonist to take responsibility for his actions. Igor's primary service involves Persona fusion, a process combining existing Personas to create stronger manifestations, enhancing the protagonist's abilities to combat Shadows. He also grants access to the Persona Compendium for recalling summoned Personas. During key narrative moments, such as the aftermath of the Yakushima trip, Igor may allow the protagonist to revisit memories of past events. His dialogue often hints at future developments, including the inevitability of death and the significance of social bonds, though he acknowledges limitations to his omniscience. He later provides Aigis access to the Velvet Room after she awakens the Wild Card ability, noting their shared nature as artificial beings granted consciousness. In the spin-off anime *Persona -trinity soul*, Igor appears as a fortune teller in dreams to Shin Kanzato, referencing a prior meeting in the Velvet Room despite Shin never formally entering it or using fusion services.