Clues during the opening credits.
Did you notice that most of the names have a "shadow" but in another colour and font? Well, with some of the names, a couple of the letters change into that colour and font. I noticed that one of them spelled "cat", and the cat is eventually killed*. Did you notice the others (I don't remember them)?
*Why did CHARLIE kill the cat? He wasn't "in the way" like the others.