I also have a problem with the formatting, and I'm the one that added the cast.

I agree with you; I think they should have their own dividers.  But the film itself pre-empted this by listing Danny Trejo and Cheech Marin within the cast for Planet Terror (the Machete trailer came just before Planet Terror).  Using the film's own logic the trailers for Don't and Werewolf Women of the SS came just before Deathproof, so I added the uncredited cast to the Deathproof section.  I'd far rather they had their own dividers, but as the main credits had set the precedent I could see people voting the dividers down, which is why I didn't try submitting them.  What's particularly annoying is that the Trejo and Marin credits don't even acknowledge Machete, making them even less clear.