K.C. Undercover Wiki
It's time to bake the biscuits!
—Ernie's pre-action catchphrase

Ernest George Washington Carver “Ernie” Cooper is the overall deuteragonist of K.C. Undercover. He is Craig and Kira Cooper's son, K.C.'s younger brother and Judy's older brother.


He's mostly labeled as an outsider and a geek. He is also rather unlucky when it comes to romance, having only dated two girls before, (Jolie) and (Akina). He is a computer genius in the Cooper family.


Computer Hacking

Ernie is a very skilled computer hacker and at hacking firewalls. He was able to hack into the closed-circuit camera system, hack into GPS systems and can get details about anyone.


Ernie is quite skilled at engineering, he was able to fix Judy when she was being controlled by a virus and helped Judy get her memory back in the Season 2 opener.


Ernie has some strength, he was able to lift Marisa and ran away when they were attacked with a laser gun from Ursula, and was able to send a criminal flying to a wall by jump kicking him in "Web of Lies".


Ernie is an extremely lucky guy as he single-handedly defeated a criminal on his own and stopped the coma of the president thanks to his luck and unintentionally ruining Richard Martin's shot.


Ernie is very good with chemistry, as he was able to synthesize a truth serum & love serum that were very effective.

Items to Advantage

He seems to be very skilled in combat when it comes to using items. This is demonstrated in "Stakeout Takeout", when he hit Garret with the door, "Down in the Dumps", when he flipped K.C. by pulling the mat from under her, and "Web of Lies", when he threw stuffed animals to make the criminal fall, and proceeded to smash a pinata on his head and hit him with a stick.

Master hand-to-hand combatant

As a spy, Ernie has some experience in hand-to-hand combat, as he was able to jump kick a highly trained criminal and was able to beat K.C. to a stand still and beat Brady.


  • "It's time to bake the biscuits."
  • "What is going on?"

Physical Appearance

Ernie typically wears a casual shirt with denim jeans; he is not known for any sense of style nor fashion. He has silver circular glasses and crooked teeth.


  • Ernie appeared in every episode except "Operation: Other Side Part 1" and "Operation: Other Side Part 2".
  • Ernie appears in the most episodes out of any character other than K.C.
  • He is the only character other than K.C. to appear in every episode of a season.
    • He appears in every episode of Season 2 and 3
  • He suddenly knew his parents and K.C. were spies in the first episode, but he got his memory erased by his parents.
  • He is very bad at making catchphrases ("Give Me A “K”! Give Me A “C”!").
  • He single-handedly took out a dangerous criminal named Alexander Garrett. ("Stakeout Takeout").
  • Craig mentions that Ernie is 14 years old in "Stakeout Takeout".
  • His favorite color is orange.
  • His favorite food is biscuits.
  • Ernie is the youngest of the family (excluding Judy).
  • He confidently took out another criminal to save Zoe in "Web of Lies".
  • He has a cat allergy.


The biscuits are burning! The biscuits are burning!
Time to bake the biscuits!
I'm shot, man down, man down!
I wish I was treated like I was in the family!
What... is going on?


To view the Ernie Cooper gallery, click here.

Main Characters
K.C. CooperMarisa MillerKira CooperCraig CooperErnie CooperJudy Cooper