Summer Glau never seems to be able to stay on one show for too long. She has been all over since we first met her on Serenity in Joss Whedon’s series “Firefly”. She has since made appearances as a guest on “Big Bang Theory” and “Dollhouse” (another Joss Whedon series). All of these shows only a geek could love. Coming this fall she will be able to add “The Cape” to that list. The superhero-themed show will be one of the new series on NBC.