I'm not sure if these are already posted, but I rather like these fellows.
Here's Blackheart: Undead Brigand (Whether he's related to Darkhart or not is uncertain.)
Below is a picture of the all-powerful Evan the Digger: He's a (You guessed it) Gravedigger! Levels 1-3.
And here's everyone's favorite fiendish Undead Slasher, Bonerattler.
