Kagewaki Hitomi

Summary
Naraku needed a temporary body to remain in the world, and so he took advantage of Kagewaki's position, and posessed him. Kagewaki's father was also possesed, and then killed by Naraku while he was disguised as Kagewaki. Kagewaki's position also helped him with tricking Sango into believing that Inuyasha was responsible for the death of her clan.

Although Naraku changes bodies throughout the series, he keeps Kagewaki's face.