The beavers are visited by a magical Yak.
- This episode was originally entitled "The Yak In The Sack Gets Whacked".
- There exists another variation of this episode where the background audio is prematurely played for a short while.
- The title is a reference to The Cat in the Hat.
- When Dag points at the star on Norbert and says he wants one, it is a reference to the Dr. Seuss book The Sneetches and Other Stories.
- Norb's Dr. Suess creature form is similar to the Sneetches but he's blue with a white star.
- Nick Bakay as Norbert/Norb's Dr. Suess creature form
- Richard Horvitz as Daggett
- Charles Kimbrough as Narrator
- John de Lancie as Yak in the Sack
"Driving Misses Daggett"