Yeah yeah! I was mildly confused. So they weren't in HBP at all? Their parents take them out of Hogwarts after Dumby dies, right? So they should of been in it... hence confusion. Why bring in two complete different twins, not name them and make them have more than one scene.
Well they're only extras, really, kept there for some continuity. In the film, they're called the Carrow twins. Which means they are either the daughters of one of the Carrows or they've made the Carrows husband and wife instead of brother and sister and cast those girls as their daughters.
Comments
What? No...
Wilbo will know
Yes, now I realise what you're talking about, completely different characters. The girls in the slug club, yeah?
Either way, little more than extras.