So Funny I Forgot to Laugh

Summary
Arthur thinks his jokes about Sue Ellen's new sweater are all in good fun but Sue Ellen's feelings are hurt. Has Arthur become…a bully?

Major characters

 * Arthur
 * Sue Ellen

Minor characters

 * Buster
 * Francine
 * Muffy
 * Mr. Ratburn

Background characters

 * Alex
 * Binky
 * Brain
 * Fern
 * George
 * Jenna
 * Ladonna
 * Maria
 * Molly
 * Mr. Armstrong
 * Nancy
 * Rafi
 * Rattles
 * Slink
 * Tenzin Wangdu

Mentioned characters

 * Bionic Bunny
 * Capri di Vapida
 * Mrs. Armstrong
 * Shrubman

Episode connections

 * Arthur mentions when he was teased for wearing glasses in "Arthur's Eyes."
 * Tenzin's last appearance, "Sue Ellen's Little Sister," was also a season finale.

Gallery
{{CollapsingGallery|

Screenshots
}}