Counter Truancy Unit

The Counter Truancy Unit, or CTU for short, was a weapon used by Springfield Elementary to fight misbehavior by the students.

History
After finding out that the bullies were planning on making a stink bomb for the bake sale, CTU enlists Bart Simpson to stop them. Bart tracks them down, only to be stopped by Martin Prince, Jr., who was a double agent as the bullies stole his ant farm. Bart manages to defuse the bomb before it blows.

Active

 * Seymour Skinner; leader and operator.
 * Lisa Simpson; head hall monitor.
 * Martin Prince, Jr.; analyst (double agent).
 * Database; analyst.
 * Bart Simpson; field agent.

Former

 * Milhouse Van Houten; field agent.
 * Sherri; field agent (deceased).
 * Terri; field agent (deceased).
 * Wendell Borton; field agent (deceased).