Kid vs Kat

Kid vs. Kat a Canadian Animated television series developed and produced at Studio B Productions. The show created by Rob Boutilier. It's about a boy named Coop who battles with his little sister's (Millie) cat named Kat. The series premiered in Canada on YTV on October 25, 2008 and in the United States on Disney XD on February 21, 2009. The series ended on June 4, 2011. It ran for a total of two seasons and 52 episodes. Along with The Simpsons and Family Guy, Kid vs Kat is the third longest-running cartoon in Canada.

Overall Plot
When Coop Burtonburger's spoiled younger sister Millie brings home a mysterious stray cat, Coop's idyllic life is turned upside down. Coop soon discovers that Kat is more than just a scrawny, purple, hairless pet; he is also a smart, conniving, alien mastermind with a fanatical hate for Coop himself. Kat instantly declares war on Coop. The two battle constantly as Coop tries to stop Kat and tell the world about his sinister plans, only to find Kat destroying the evidence, and putting the blame on Coop every time.