Nemo's classmates. Roles include:

Pearl, a friendly flapjack octopus who is, quick to befriend Nemo.

Sheldon, an H2O-intolerant seahorse with an appetite for trouble who taunts Nemo to swim beyond the reef.

Tad, a self-admittedly obnoxious butterflyfish who joins Sheldon in encouraging Nemo to swim past the Drop-Off.