Henry Adams (Earth-4678)

"Oh Bats, you're so easy! Desperate to see the good in people especially when they're bad."

- Henry Adams, to Batman

Henry Adams was the highly respected principal of the esteemed Empire State University, who was exposed to Joker's blood during a routine treatment at the Elliot Memorial Hospital. Displaying none of the symptoms experienced by the other victims, Henry's infection acted like an immunity that could be the key to Batman developing a cure. Though initially cooperative, Henry's patience wore thin, and he was desperate to return home to his family.

Source

 * https://arkhamcity.fandom.com/wiki/Henry_Adams