Darren/Appearances

Season 1

 * Tennis Kid

Season 2

 * The Backup Genius
 * The Cool and the Nerd (flashback)
 * Happy Town
 * Email Fail
 * Saving Santa
 * Fishy Business

Season 3

 * Talent Show
 * Treasure Hunt
 * The Lost Scouts
 * The Substitute Teacher (non-speaking)
 * The Sixth Friend (non-speaking)

Season 4

 * The Secret Life of Ms. Vanthrax (non-speaking)