Gamajirō

(sometimes referred to as Gama for short) was a toad demon who worked for Orochidayū. He only appeared in the anime in episodes 94 and 95 (manga book 3).

During the story
Gamajiro was asked to assist the bull demon Gyu-oh in creating a copy of the Shikon no Tama. To accomplish this, Gamajiro imprisoned humans that Orochidayū captured into a frog egg-like substance. He waits till the souls are then suitable for eating. The toad demon becomes so hungry when looking at the "delicious" humans' souls that Orochidayū has to constantly remind him not to eat them.

When Inuyasha and his friends intervene with the demons' plans, Gamajiro enters the battle after Inuyasha kills Orochidayū. When ordered by Gyu-oh to attack the half-breed, Gamajiro is killed along with all the other demons by Inuyasha's Kaze no Kizu.

Trivia

 * Gamajiro is identical in appearance to the Tsukumo no Gama, the toad demon that appears in Episode 8.