Get 20% off a Lifetime Plex Pass

Enjoy this special deal, this Geek Week only.Learn More

Shaggy and Scooby-Doo Get a Clue

Don't Get a Big Head

E10    Feb 16, 2008    22m    TV-Y7
Add Show to Watchlist
Dr. Phibes, tired of being outsmarted by our heroes, revises his nano formula to increase his IQ. It also inflates his head. Now, Shaggy and Scooby must stop him from releasing a gas that will drastically lower the world's intelligence.
Where to Watch Don't Get a Big Head
Cast of Don't Get a Big Head
  • Frank WelkerScooby-Doo (voice)
  • Scott MenvilleShaggy Rogers / Dr. Trebla / Additional Voices (voice)
  • Jim MeskimenRobi / Agent #1 (voice)
  • Casey KasemUncle Albert (voice)
  • Jeff BennettDr. Phibes / Agent #2 (voice)

Take Plex everywhere

Watch free anytime, anywhere, on almost any device.
See the full list of supported devices