Board Thread:False Info and Speculative Discussion/@comment-11489125-20141015155401/@comment-13965604-20141015162049

Depending on how big the role ends up being, that they're working on other stuff might not mean much in terms of availability.

We don't know if ghosts exist in the universe either, so dead characters can't be ruled completely out either, as well as we've seen dead characters come back to life twice now, and seen Allison's mom in a guiding voice type of role.

Of the four specifically mentioned, Isaac seems most likely.

If we are speculating on all characters who are not there, then it's probably Danny returning.

Who I hope to see return though is Gerard. He's just floating around that care facility, plotting.