Yes, Drew is added in just for the pun.
When I first came up with the idea of the “ghost writer”, the television show wasn’t associated with the Sundown franchise at all. In fact, the show’s writers were just going to bring him in for authenticity… but it works better now that there’s more of a connection to the rest of the cast.
This strip also marks the first appearance of Drew’s redesign that I did back in June. In that redesign I changed his color scheme to the blue you’re seeing instead of the funky greens it used to be– It’s still those greens in the earlier strips as I haven’t gone back to change it, yet. In the Zombie Santa arc I realized that I wanted the necromantic magic that Jean-Paul was using to be blue… plus you know zombies are blue in ZR. So I figured that ghosts, who are in the same realm of things should also be blue.
It’s a little George Lucas-y, but I think it works better so I’m going to stick with it.