@Phasmophobia said:

I seriously couldn't tell the difference between the two blonde models! Which one spat up the eyeball? Which one had had plastic surgery? Which one tried to drink Jesse's blood in the bathroom?

All the scenes you mentioned were the same model, the other one (not Fanning) had long hair... But yes, I expect they cast similar looking actresses for that reason and in particular a scene where the difference of artificial beauty versus real beauty is actually a moot point. At least I took it to be so...