Call this one Harry Potter and the Sick Burn.

Miriam Margoyles, who played Professor Sprout in the Harry Potter movies, is expressing some concern for adults who are still a little too invested the wizarding world.

In an interview with New Zealands 1News that aired last week, she was asked about the differences between fans of Harry Potter and fans of the English comedy series Blackadder, on which she also appeared.

The British-Australian actor took the opportunity to share some of her reflections on Potter-mania.

I worry about Harry Potter fans, because they should be over that by now, she said. You know, I mean, it was 25 years ago, and its for children. I think its for children. But they get stuck in it.