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Dr. Kirk Langstrom was a scientist trying to find a cure for deafness using bat DNA but accidentally turned himself into the Man Bat.
Dr. Kirk Langstom (Man Bat)
Side VILLIANS In Part II
for Side VILLIANS In Part II in Who Should Be The Main Villian And Side Villian In Batman Part II & III
Suggested by royaloak282610
Who Should Play Actors No Hush As main Villian Because its Too Similar to Riddler