Some sample questions from this category:
* Which 2 actors played The Riddler?
* Which of these actresses was the original Catwoman?
* Which of these actors never played Mr. Freeze?
* Diane McBain played Colonel Gumm's boss at the stamp factory in his episodes, but she was also the assistant for a villain in earlier episodes. Who was her criminal boss?
* Lee Merriwether played Catwoman in "Batman", the movie, but also played wealthy socialite Lisa Carson in two episodes of the series. Which villain kidnapped her?