Pop Culture and Fictional Characters

Ginny Weasley buys a Pygmy Puff from Weasleys' Wizard Wheezes and names it Arnold.

Hermione's cat is named Crookshanks. He is a half-Kneazle, which explains his high intelligence.

When Hermione accidentally adds a cat hair to her Polyjuice Potion instead of Millicent Bulstrode's hair, she transforms into a cat-human hybrid.

Argus Filch, the caretaker of Hogwarts, owns a cat named Mrs. Norris. She is known for patrolling the corridors and reporting students to Filch.

In the Goblet of Fire, Barty Crouch Jr., disguised as Mad-Eye Moody, transforms Draco Malfoy into a white ferret as punishment for trying to attack Harry.

Ron Weasley takes Padma Patil to the Yule Ball in the Goblet of Fire, though he spends most of the evening ignoring her.

Daniel Radcliffe had a severe allergic reaction to the green-colored contact lenses used during the first film, so the production decided to forgo them.

Winky the house-elf struggles with her freedom after being dismissed by the Crouch family, leading her to drink Butterbeer excessively. Butterbeer is mildly alcoholic to house-elves.

The three-headed dog guarding the trapdoor in the third-floor corridor is named Fluffy. Hagrid bought him from a Greek man at a pub.

Dobby's first words in the series are "Harry Potter" when he introduces himself to Harry in his bedroom.

In the United States, non-magical people are referred to as No-Maj, which is short for No Magic. This is the American equivalent of the British term Muggle.

Dolores Umbridge's Patronus is a cat. This is seen when she uses it to protect herself during the trials at the Ministry of Magic.

The giant Abraxan horses that pull the Beauxbatons carriage are noted to drink only single-malt whiskey. They are extremely powerful and require careful handling.

Baruffio the Brainy was a wizard who famously mispronounced a spell, resulting in a buffalo appearing on his chest instead of the intended effect.

For Dudley's 11th birthday in the first book, the Dursleys take him and Harry to the London Zoo.