Millicent Bulstrode's cat

Millicent Bulstrode's cat was a pet of Millicent Bulstrode. Its owner took it to Hogwarts School when she was a student there. The cat's fur is black, the same colour that its owner's hair. In 1992, Hermione Granger plucked a small hair of the cat from Millicent Bulstrode's robes, thinking it was hers. She added the cat's hair to the Polyjuice Potion she was brewing, with catastrophic results, after being drank by Hermione.

Appearances

 * Harry Potter and the Chamber of Secrets
 * Harry Potter and the Chamber of Secrets (film)
 * Harry Potter and the Chamber of Secrets (video game)