Dahlia F.

Dahlia was a witch who apparently worked as an opera singer. In her childhood, she attended Hogwarts School of Witchcraft and Wizardry, and was singled out for membership in the Slug Club. Horace Slughorn kept a picture of her in a viking maiden costume on his shelf, which she had inscribed, "Best wishes."

Appearances

 * Harry Potter and the Half-Blood Prince (film)