Heroes & Villains - Round 2

Welcome back for Round 2 of this year's crime fiction March Madness tournament: Heroes vs. Villains. For everyone who thought Round 1 had difficult decisions, this round is far worse! I wish you luck in making your choices and hope you will support your favorites by encouraging your friends to stop by and vote as well.

If you need help remembering where some of the characters come from, here's the beginning post with the characters and their authors. You can also check the bracket here. 

Let the voting begin!