Is Harley Quinn headed to 'Gotham'?
A 'Gotham' producer hinted at a role for Harley Quinn in season 3 finale.
'Gotham' nabs Pee-wee Herman actor Paul Reubens to play Penguin's dad
He played the same role in 'Batman Returns'. It's perfect casting.
This 'Gotham' fan theory guesses at who could become the Joker
The Joker may get 'The Last Laugh' after all.