Amazon Trio

The Amazon Trio were a group of three villains, Tiger's Eye, Hawk's Eye, and Fisheye, who appeared in the fourth season of the anime and the Dream arc of the manga. In the manga they were fairly minor characters, similar to monsters-of-the-day and under the command of the Amazoness Quartet, while in the anime they were given bigger roles and expanded personalities.

Anime
In the Japanese version of the anime, all three characters were male. In the English version, Fisheye was a female. The function of the three villains was to find the person in whose beautiful dream (in the form of a Dream Mirror) Pegasus was hiding. They chose their victims by picking through photographs of people, seemingly at random, from a pile they kept on a tabletop. They would often pick people Usagi knew closely, such as Mamoru Chiba or Rei Hino, but not always. They were assisted in their efforts by various Lemures.

When the Amazon Trio had failed in the eyes of Zirconia, they were attacked by a clown that seemed impossible to fight. When the three were killed, they transformed back into their original bodies: a tiger, a hawk, and a fish. Pegasus then gave them all their own Dream Mirrors, which they had longed for, and took them to Elysion.

Role in the series
The Amazon trio have not appeared yet in the Spongebob series. However, they did appear in the Eds adventures as enemies, then allies to Ed, Edd, and Eddy.