Jaken

Jaken is Sesshoumaru's faithful servant. Jaken is a short toad-like demon, and is often whining about Sesshoumaru not appreciating him or treating him well.

Jaki

Jaki is the Japanese term for demonic aura, or a feeling of a bad presence or demon close by. People with spirtiual powers, such as priestesses or monks, are usually the ones who can sense Jaki.

Jinenji

Jinenji is a kind and gentle half-demon that Inuyasha and the gang met on their travels. Jinenji is very large and very unattractive. Kagome and Inuyasha make friends with him when they help him and his mother escape persecution by the villagers in his village.

Juuroumaru

Juuroumaru and his brother Kageroumaru are incarnations of Naraku that were designed to fight Inuyasha. Juuroumaru was the smaller of the two and was living inside of his brother until he was forced to come out. Juuroumaru was the "brains" for his brother.