OK I wanted to get accepted in a higher field of RP but it wasn't in me to compose the app.  But, I am basically a fan of the Marvel brand. So, I'm not supposing much else besides certain characters:

Punisher, Daredevil, Elektra, Spider-Man, Black Panther, Black Widow, and who it may be that's subject to the gritty KNIGHTs label

This is off the top of my head, that's seriously. This is for people who like grit.