Kid vs. Kat

When his little sister brings home a hairless cat named Mr. Cat, Coop is forced to constantly fight him, as he actually wants to take over the world so his fellow cats can migrate to Earth. He also has to ship a huge amount of cat food back to their home planet.

Cat wants to destroy Coop, who constantly interferes with his plans to take over our planet. Coop and his best friend Dennis are forced to confront Cat alone, as all evidence of Mr. Cat's alien origins is somehow disappearing, and no one believes Coop's stories.

Bart Burtonburger is Coop and Mila's father.
He has a "House of Exchange" where he works.

Cooper (Coop) Burtonburger is a grown boy

Millie Burtonburger is Coop's eight-year-old younger sister and Cat's owner.

Mr. Kat (Cat) is a space agent

Dennis Lawrence Chan is Coop's best friend. He is an older boy.

Annie Lucia Munson is a mean old woman who lives next door to the Koopa family.

Fiona Munson is Coop's best friend and lover. She is also the second cousin once removed of Annie Munson. She is an adult girl.

Phoebe Beauty is Coop's classmate. She has a crush on him, but Coop doesn't reciprocate and tries to keep her distance. She has brown eyes, matching hair, and light brown skin. She's a mature girl.

Lorne Carnage and Harley Baldwin are two hooligans who film everything, especially Coop, on video. They're twins, and therefore both have red hair. However, Lawrence is a bit overweight and tall, while Harley is short and skinny. They're grown-up boys.