Exec Ed Kitsis has spoken about Sheriff Graham’s fairytale counterpart, hinting about his identity. There is also a potential spoiler about his fate.
While it doesn’t give much away, we’ll take anything we can get! TV Guide has spoken to Kitsis, who says:
I would say you would know exactly who he is and what his role is when you find out.
TV Guide also writes: “It appears the mysterious sheriff is not long for this world.” We assume this is referring to the promo, not any actual information they know.