Name:Ari Batchelder
Age:7
Powers:Mophing into a wolf like dog,voice in his head that can be seen.
Looks:Sandy blonde hair, brown eyes, and tan skin.
Background:Ari is the leader of the Erasers sent by the School to hunt the Flock.
He is the biological son of Jeb Batchelder, one of the top scientists at the School, and Max’s half brother. When he was three years old, his father disappeared with the Flock, leaving Ari in the care of the School's genetic scientists. The geneticists used Ari as an experiment, incorporating his original DNA with wolf DNA, creating a new breed of Erasers that could live longer than the previous versions - those who were converted as zygotes. However, when he morphs into an Eraser, it burns.
Despite his desire for Max's death, Ari admires her. He is willing to do anything to kill the entire group, especially Fang. Since he likes Max, he seemingly doesn't want Fang moving in on her. He even allowed whitecoats to put wings on him so he could ambush the Flock in mid-air.
Ari is the most wolflike of the Erasers, always in a partially morphed state, never quite human, never quite wolf. One time, he was mistaken for the X-men character Wolverine by a young boy at Disney World. While he was talking to the boy, the child asked for Ari's autograph and he signed Wolverine "with a flourish," but strangely later in the series he can not write or spell his own name. This could be because he is approaching his "expiration date" and thusly deteriorating physically and possibly mentally.