Horribleville is a comic about young cartoonist KC Green, and the parts of his mind he talks to. Maybe he is crazy?. HV had bits of itself show up in another comic, KC did, but lucky for you, I found the comics that set off the chain of events that made Horribleville what it is today, so you don't have to. These are they.
KC: our sad cartoonist.
The Editor: the nagging voice in the back of your head, getting you to remember to do things.
Writer's Block: forgets easily and loves to waste time.
Doosty: the meanest cat who wants to kill his owner.