Jimmy, also known as Cartoon Cat, is a megalomaniacal, sadistic psychopath who lives for the thrill causing suffering. He can shapeshift at will, stretch his limbs, create life from his own biomass, regrow lost limbs, disguise as a human or a regular cat, manipulate reality, vomit lobs of meat that can graft onto someone and rewrite their genetic code to whatever he wants, and is invulnerable and immortal. He isn't a god, but he sees himself as one, and views humans as toys for his twisted game of cat and mouse. His form varies often, but most of the time, he is from 12 to 16 feet tall, with pointed stubs in place of feet that should be impossible to stand on. He has cartoony white gloves, which are actually a part of his body, and they're always stained with blood. He has the head of a cartoony cat, with bulging eyes with slit pupils, a huge cartoony smile that's always there and shows his bloodstained cartoony flat teeth, and a cartoony, rubberhose build, with fur that's always matted with blood and viscera. He talks like he's from a 1930's cartoon, and he is aromantic and asexual, not wanting love or goodness in the world- only mayhem, death, and pain. He is Jenny's younger brother, and he hates her with everything he has, thinking she's too much of a "Scaredy-cat," to have fun. He doesn't kill his victims right away- he tortures them, both physically and psychologically, because it's not the kill that brings him pleasure- it's the pain and fear he causes.

Jenny is the complete opposite of Jimmy. Jenny, also known as Cartoon Kitty, is a warm, sweet, motherly, loving, gentle, caring, maternal, kind, protective, possessive, and slightly seductive caretaker and protector of humanity against Jimmy. She has the same abilities as Jimmy(though she is a bit stronger)except for the meat vomit, but can instead control the minds of humans with a thought, and heal them by pulling them inside her. She knows she isn't a god, and instead views herself as a mother bear protecting her cub, humanity, from a hungry, feral wolf, Jimmy, and she sees humans as precious treasures to be spoiled and protected. She keeps her form the same most of the time, and it's 14 feet and 6 inches tall, with real paws for feet. She has cartoony white gloves, which, just like Jimmy's, are a part of her body, but unlike Jimmy's, they're always pristine and clean. She has the head of a cartoony cat, with those same bulging eyes, but with huge pupils instead, and a smaller cartoon smile with perfect clean teeth, but she can change the expression of her mouth. She has a less cartoony body; she has massive breasts, huge thighs, and a round butt, with a muscular hourglass figure and fur that's always pristine. Unlike cartoon cat, she actually does wear clothes- not much, just a hoodie. No bra, no pants or panties- just a black, zip-up hoodie. She talks normally to Jimmy and other monsters, but her voice takes on a warm, honeyed, adoring tone when she speaks to humans. She calls herself Mommy Kitty, mommy, and mama when speaking to humans, and is bisexual. She is Jimmy's older brother, and she pities him immensely, thinking, "Poor little narcissist's too caught up in his god complex to realize how beautiful humans are." She doesn't have a pet human yet, but she wants one more than anything. If she got one, she'd spoil it with everything she had and treat it like her baby and kitten.