I’ve just uploaded a new extension for Comicster called Comicster.Searches.Top50.
This extension adds two new custom searches: “Top 50 Characters” and “Top 50 Creators”. They display the 50 characters and creators in your collection by the amount of issues in which they appear. The results might surprise you!
As with any Comicster extension, install it by clicking “Tools|Extensions” from inside Comicster!