Chelsea has brown skin and a ginormous bush of dense brown hair. She also has buck teeth with braces, though her front two teeth are fake. She wears a purple turtle neck, a light green skirt (or possibly undershirt), pastel green leggings and Mary Jane style dark green shoes.
Chelsea is in the 4th grade and is one of Clarence’s classmates, making her about 9 years old. Chelsea is the second-highest scoring student in the class (behind Breehn). She could be considered a "tomboy" and tries to join Clarence, Jeff and Sumo's guy's club. Taller than most of her classmates (With an exception for Amy, Nathan, and Try, who are among the most tallest), with an obsession with creepy stuff, Chelsea gives Sumo a run for his money when the two "battle" to see who can gross the other out first (Too Gross For Comfort). The battle ends in a humorous tie when Chelsea and Sumo both think of the same gross thing to do - kiss. The two open their eyes and, in disgust, run away from each other. Chelsea is best friends with Alison. Armed with a morbid sense of humor and blunt honesty, Chelsea is the kind of girl to speak her mind. Her teasing scares Clarence and Jeff but is a soothing balm for Sumo. Chelsea loves creepy and weird things.
The gallery for Chelsea Keezheekoni can be found here.
She and Kimby were like this in Plant Daddies, to where Kimby didn't know much with Chelsea as they both are assigned as a work duo, their relationship started off as they trying to set a difference of they normally do, but once both got to set it with each other, they began to get along.
She and Alison were best friends as seen in Clarence's Millions, but however recently she hasn't been seen with Alison in a while.
- Chelsea got her first major role in "Dinner Party".
- She was voiced by Nika Futterman in "Money Broom Wizard" but voiced by Grace Kaufman in "Clarence's Millions" onward.
- She is supposedly very intelligent, as seen in "Average Jeff."
- She is best friends with Alison as seen in "Clarence's Millions."
- It is possible that at one time, she has a crush on Sumo, as seen in "Too Gross for Comfort".
- In "Spooky Boo", it's revealed that Chelsea has a mom and brother named Glary. It it unknown about her father until he made his official appearance in Pizza Hero.
- in "The Interrogation", her last name is Keezheekoni.
- In Missing Cat, she shown to be stronger as she beat Nathan in arm wrestling and was able to get the fire hydrant to open (possibly without the right tool).