Orange Lil' Cap sadly can't talk since he's a "cat cap" and can be playable and sometimes smart (he's 42% smart). The sad part is that he's limbless and can't do sign-talking. He can be invisible so he can hide from his enemies

A cute orange goober

Dr. Reflex is eager to do his job as he will run toward the player when he sees them in order to initiate a reflex test. He gets upset when the player messes up the test, but encourages them to try again. When his reflex test is interrupted for any reason, he will turn aggressive and attempt to hunt the player down with a hammer

Don't leave until the test is finished!

Beans likes to "impress" others by blowing out bubble gum bubbles but warns the people to not let an adult see it, meaning that if he does it, he will get detention, but currently in-game, he does not.[1] He also enjoys rhyming, and is apparently very good at it. He is very honorable, being afraid of his bubble gum hitting the player. Also, he seems to have some shame after his bubble gum hits the player or an NPC.

The bubble gum boi

Chalkles' description from the Principal's office suggests that he loves causing mischief around the Super Schoolhouse.

Some kid drew this face

Principal of the Thing has a very calm personality, speaking in a monotone voice and barely raises it without expressing any other emotions. Like a hall monitor, he is in charge of the Schoolhouse or Super Schoolhouse and will put students in detention upon getting caught breaking any of the school rules "in the halls", even if they are in any location except for the playground and his office.