DC Database
The subject of this article has been mentioned only and never actually shown in a comic book or on-screen. Despite their lack of physical appearances, information about them might still be relevant or interesting or at least worthy of documentation. Anything known about them is to be considered second-hand information.

Dr. Jonathan Crane was the college professor of Harleen Quinzel.

At some point, Dr. Jonathan Crane taught Harleen Quinzel while she was in college. She would go on to become a well-known physiatrist and use many of his techniques to explain Batman's possible motives to the many officers and detectives of the Gotham City Police Department.[1]


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