I was about to bad mouth Robin.
Then I laughed, because I remembered him from Wilfred last year.
Here's the thing.
If Robin Williams wants in on something, he gets in.
Just turn up on set uninvited and says "I'm Robin Williams, someone get me a script and a coffee."
He's NOT on Defiance or Game of Thrones because he likes to sit back and watch the show.
It's amazing the slivers of fate that protects us from true horror.