Sgt. Mole is a fictional character from the Wild Cards series of books. This unassuming, undersized Joker has the honour of being the first Joker cop employed by the NYPD (brought in by then Mayor Gregg Hartmann). Called “Sergeant Mole” by cops in “Fort Freak”, he is relegated to the records department in the basement of the old Bowery 5th Precinct. Joe Mo is what you'd expect from his nickname, with a mushroom complexion and tiny pink eyes behind extremely thick spectacles.