So, I recently watched the movie "Seventh Son" and thought the characters deserved Pathfinderization.
I imagine Master Gregory as a Witch Hunter Inquisitor.
The Witches (Mother Malkin, Bony Lizzie, Alice, Urag, Radu, Virahadra, and Strix) could be Witches. But for some of them, other classes seem just as fitting.
Mother Malkin
Changeling Witch (Transformation) or possibly Draconic bloodline Sorcerer
Bony Lizzie
same as Mother Malkin
Alice
Changeling, probably following in the footsteps of her mother and aunt, but lower level
Urag
Human Transformation Witch. We don't see him do anything other than transform, so a Skinwalker Natural Weapon Ranger could work.
Virahadra
Kasathi Magus? Or even Fighter, since I don't remember him doing any magic.
This character did give me a cool idea to incorporate Kasathi into Golarion as a Vudrani race blessed by their gods. They look like blue skinned, four armed humans, stats unchanged.
Strix
No idea really. He was just weird.
Radu
Human Transformation Witch? I think Sorcerer might work better here, not sure on bloodline.
His "assassins" could be followers from Leadership, or undead he has created. But there's not really a good way to get both undead creation AND Form of the Dragon into a Witch.