Starring Kiernan Shipka in the title role with Lucy Davis and Miranda Otto as Aunts Hilda and Zelda, Chance Perdomo as Cousin Ambrose, Ross Lynch as Harvey, Jaz Sinclair as Rosalind Walker and others.
It's still not known when the ten episode Netflix show will premiere (I thought some time in October but don't quote me). They don't have a SDCC panel scheduled though there will be bags given out.
Reminder that it's still the same creative team that brought you Riverdale. It only remains to be seen how much zanier they'll be without traditional network constraints.