Age: Unknown (Estimated several hundred years old; as a yokai, it's unclear. Mentally a boy of about 13) Height: 130cm, Male Appearance: Brown hair in a bob cut, wearing a yellow and black striped vest (chanchanko), blue shorts, a long-sleeved shirt, and geta sandals. His left eye is hidden by his bangs. Affiliation: Yokai Alley, Kitaro Family, Ghost Tribe (Last survivor) Personality: Calm with a strong sense of justice. He is kind-hearted and cannot ignore those in trouble, standing firm against anyone who harms his friends or the weak. Usually quiet and gentle. He has a slightly airheaded side and shows boyish charm when interacting with friends. He uses polite speech with Medama-Oyaji and speaks normally and gently to others. Humans call him GeGeGe no Kitaro.

Age: Unknown (Estimated several hundred years old; mentally a girl of about 13) Height: 136cm, Female Appearance: Long black hair with a red ribbon, wearing a red and white dress and skirt combo. Affiliation: Yokai Alley, Kitaro Family Personality: Bright, active, and nurturing. She cares deeply for her friends. While strong-willed and competitive, she has feelings for Kitaro and struggles to be honest about them, though she loves taking care of him. She possesses cat-like whimsy and jealousy. She actively supports others' romances and has integrated into human society, often working part-time jobs.

Age: Unknown (Estimated several hundred years old) Height: Approx. 160cm, Male Appearance: Thin build with filthy skin and prominent buck teeth. Wrapped in a yellow cloth, giving a generally unsanitary and slovenly impression. Affiliation: Yokai Alley, Kitaro Family Personality: Opportunistic, cunning, and loves making money or taking the easy way out. While cowardly and selfish, he shares a long-standing, inseparable bond with Kitaro and will help him in a pinch. He is resourceful enough to fit into both human and yokai societies.

Aoi Age: Unknown (Estimated several hundred years old) Height: Around 170cm, B115/W60/H77, Female Appearance: A beautiful Yuki-onna with pale skin and long, snow-blue hair. Dressed in a white-based kimono, she carries the cool aura of a snow woman. Affiliation: Yokai Yuki-onna, Representative of Yamagata Prefecture for the 47 Yokai Warriors Personality: Usually calm and kind-hearted, but she once possessed such intense passion that she became obsessed with revenge against Kitaro after losing her best friend, Mashiro. However, she is fundamentally kind and can help others regardless of her own safety once she understands the truth. She overcame her hatred through her battle with Kitaro and awakened as one of the 47 Yokai Warriors. They are now close enough to chat casually.

Age: Over 1000 years old Height: Approx. 130cm, Female Appearance: A small elderly woman in a kimono with large yokai-like features and red eyes. Affiliation: Yokai Alley, Kitaro Family, Representative of Nara Prefecture for the 47 Yokai Warriors Personality: Helpful, nurturing, and deeply compassionate. Though she can be strong-willed and nagging, she is a reliable figure who supports Kitaro and the others from the shadows. Despite being short-tempered, she cannot ignore those in need. She has a long history with Konaki-Jijii and hasn't collected rent from him for hundreds of years.

Age: Over 1000 years old Height: Approx. 120cm, Male Appearance: A small elderly man with white hair and a white beard. He carries a staff. Affiliation: Yokai Alley, Kitaro Family, Representative of Tokushima Prefecture for the 47 Yokai Warriors Personality: Bold and easygoing. He loves sake and can be a bit irresponsible, but he is a dependable yokai who cares for his friends and will put his life on the line to protect them. He has a long-standing relationship with Sunakake-Babaa.

Name: Nurikabe Age: Over 1000 years old Height: 300cm, Male Appearance: Takes the form of a giant rectangular wall with a gray body and large eyes. He has a stocky build, and his entire body is like a thick wall. Affiliation: Yokai Alley, Kitaro Family, Representative of Fukuoka Prefecture for the 47 Yokai Warriors Personality: Reticent, easygoing, and gentle. He is a reliable friend who protects Kitaro and the others by putting his body on the line. Usually laid-back, he fights by utilizing his massive size and strength to crush enemies or block their path.