I also can't recommend Dr Mcninja enough. He is both a doctor, and a ninja, constantly conflicted between slicing people in half, healing them, and trying to be Batman. He has a sidekick, a 13-year old gunslinger who grew a moustache out of sheer willpower who rides a velociraptor. He has Benjamin Franklin's clone as a mentor and a family who's totalle nutters (dad's in panel 2). And both the humor and the art are awesome:
Later editions are in colour
The Doctor will see you now Promoting Lesbianism -->