Tammi

Tammi is an Empousa. She was taught by Kelli, who is also an Empousa. Because of the mist, both appear as cheerleaders of Goode High School.

The Battle of the Labyrinth
In The Battle of the Labyrinth, Tammi and Kelli tried to kill Percy Jackson. Tammi came close, but Rachel Elizabeth Dare snapped Percy out of the seduced state he was in. Percy was able to kill her, but not Kelli, who was much more experianced. She is said to be Kelli's trainee. She is described as having blonde hair and blue eyes when covered by mist. In her real state, she is pale white, has fangs, has flaming hair, one donkey leg and one mechanical.