Who had any idea there were so many librarian superheroes? Apart from Barbara Gordon, aka, Batgirl, I didn’t realize there was such a large number of informavore vigilantes careering through our halls of higher learning.
This is just a smattering, of course. For more, you could try Google, or as Jessamyn West suggests in this presentation, Tips for Aspiring Librarian Superheroes, you could actually go to a library and ask them directly. (They are legion.)