the returning guest cast
So glad, they're doing the ones I care about most.
Henry doesn't really count, since the character is staying, albeit with a different actor.
But Emma, Belle, and Zelena, yippee. Wish Emma and Belle would be in more than one episode, but Zelena is returning for multiple, so that's great.
Honestly fine with the Charmings not coming back as of yet. Unless the plot somehow calls for it, I don't need to see them again until the last episode, they're the most boring and predictable.