Top 10 Most Underused Batman Characters

The items in this list have been selected by the author of the list for you to vote and comment on.
The Top Ten
1 Professor Bubbles

A really funny villain that only appeared in 1 episode of the 1977 show.

2 Baby Doll

Such a good minor villain.

3 Egghead

A eggtremely underused villain.

4 Black Mask
5 Farmer Brown
6 Firefly
7 King Tut
8 the Calendar Man
9 the Scarecrow
10 the Mad Hatter