Susie acts aggressive, blunt, and standoffish at first, but grows into a loyal and protective friend over the course of time hanging out with Kris and eventually Noelle! She has purple spiky hair, is tall, and is a dinosaur monster (That’s what everyone is except for Kris!)

Kris is the only human among the monsters, but they have yellow skin and brown hair. Kris is a very quiet, introverted, and mischievous person, but they also have a trouble with a thing they have called the SOUL.

He’s a blue bird monster and has bird feet as well, he’s a big nerd and is best friends with Noelle! But he’s also arrogant, pretentious, and insecure student who masks his deep fear of inadequacy with a proud, know-it-all persona

She’s the strict mother of Noelle, she’s also slightly mentally abusive due to her oldest daughter and Noelle’s sister, Dess (December) going missing. She’s also a deer monster like all of her family

Toriel is the mother of Kris and her oldest son Asriel! Who was also best friends with Dess (December.) She’s also kind, motherly, and traditional elementary school teacher who acts as a grounded suburban parent with realistic human flaws. She’s a goat monster like her ex- husband and her son Asriel!