Myōga

is a flea yōkai who appears randomly and gives Inuyasha information on current events, foes, and the shards of the Shikon no Tama. Assigned to protect Tessaiga's hiding place in the grave of Inuyasha's father, he runs away when Sesshomaru comes there in search of the sword. Myōga often flees before or during a battle, which the others recognize as a sign of pending danger; his mere presence in any area is enough to determine its safety. Myōga enjoys drinking yokai blood, and actually saves Inuyasha's life at one point by drinking a spider yokai's venom out of his blood. He can save the others in a similar manner, but often gets squished for drinking their blood without permission. Myōga usually leaves the group regularly to search the land for useful information, and often shows up again at unexpected moments. He is also good friends with Totosai, and often spends time with him when he is not with Inuyasha's group. In the anime series, he is engaged to another flea yokai named Shoga, but continually runs from her to avoid the marriage. In the series finale, Myōga chooses to remain living with Totosai.

Trivia

 * Ironically, Myōga's means divine protection but as soon as he senses danger, he flees which has been witnessed throughout the series
 * Paul Dobson voiced both Myōga and Naraku in the English version. Dobson also voiced Happosai from Ranma 1/2, who looks very similar and shares some of the same personality traits as Myōga.
 * In the original Japanese version, Myōga is voiced by Ken'ichi Ogata. Ogata also voiced Genma Saotome from Ranma 1/2, who, like Happosai, also shares some of the same personality traits as Myōga.
 * Myoga has Arthritis
 * Myoga used to be a companion of Inuyasha's father, Inu no Taishō