While most superheroes were born in comic books, some iconic characters originated elsewhere. This has happened with Marvel characters such as X-23 (a female clone of Wolverine) in “X-Men: Evolution” and Harley Quinn (the Joker’s love and right-hand girl) in “Batman: The Animated Series.”
Following the events of September 11, there have been movies (World Trade Center) and TV specials discussing the tragedy of this day as well as the heroism of police, firefighters, and first responders who braved the danger to help anyone they could.