Dead

Overview
Dead was the history of death teacher at Idiot School until she died and couldn't come back since she didn't have any summoning items.

Season One
Poggers: Dead kills Antonio for eating.

Season Five
Megamind's English Class: Dead won't give Blu an extension on their death project.

Serotonin: Dead thinks drugged Alex is normal Alex.

Season Seven
Tuesday: Dead teaches the class about Moxie, and is threatened by Moxie.

Season Nine
The Return of Cracklin: Dead gets scared by the Idiot Squad

Trivia

 * Dead is the only character to not have any summoning items.
 * Dead's subject is a reference to her future death.