What's in a Name, 5

One of the characters in the Peanuts universe was “555 95472,” or “5” for short. Introduced in September 1963, 5 explained that his father was so upset about people being seen as “just a number,” he renamed the entire family as a series of digits.

The family’s last name is taken from their ZIP Code, though when spoken, 5 insists there’s an accent on the 4. The ZIP Code, by the way, is the real one for Sebastopol, California, where Charles Schulz lived at the time.

5’s sisters 3 and 4 made a few appearances in the strip before disappearing, but 5 was occasionally a background character until 1981. You’ve probably seen 3, 4, and 5 already and didn’t even know it. All three appear in the famous dance sequence in 'A Charlie Brown Christmas'. 3 and 4 are the twin girls in purple dresses, while 5 is the spiky-haired kid in orange.