It has been confirmed and already taped. Tobin Bell will appear in 5 episodes of NBC Days Of Our Lives, beginning March 11, 2016.
He will play John Black's (played by Drake Hogestyn) long-lost father. I have seen a picture that they took that has already been released on the internet.
I don't know the story behind what Tobin Bell is wearing in character, but he looks like a homeless man and has a bottom tooth missing.
It's not the size of the saw that matters, it's how you use it.