Scratch's nemesis could be: Pegs Burt
Zombie-Charly (who remembers Charly?) Tardust (think of it!)
I'd love to see a giant death match with Scratch knifing down Ink, while Ink turns her into a zombie; meanwhile Burt aims thoroughly with two Shirley Mk2 and blasts Scratches head of while she turns ... And then she drops into the cracks at ground zero ...
But I don't see this coming actually ...
And no, I don't think Scratch shot at the door of Burt's cell; he seemed way too lively afterwards, while Saul seemed to be kind of weak at the end of this episode ... Also Scratch said something along the line, who it would be who comes through this door, which is why I think she shot Saul.
Also add Riley to that list. She had an attachment to Angel, so if she finds out that Scratch killed Angel she'll be looking for revenge.
"There a many ways to kill a zombie, but I find the most satisfying way is to stab it in the brain with a wooden stick." Dwight K. Schrute
Bookmarks