Okay, they don’t have “real” names because they’re fictional characters. These are merely the full, given names of fictional individuals you may have known only by their nicknames that you didn’t know were their nicknames.

Scoobert

Of the Mystery Inc. gang on Scooby-Doo, Where Are You? the two most notable characters were known by nicknames. Shaggy’s real name: Norville Roberts. Scooby-Doo’s real name? Scoobert.

Moaning Myrtle

Senator Elizabeth Warren isn’t the only famous Elizabeth Warren. Moaning Myrtle—Uncle John’s favorite character in the Harry Potter series, because she’s a ghost who haunts a bathroom—was once known as Myrtle Elizabeth Warren.

Peppermint Patty

Peppermint Patty is the Peanuts character who nicknamed Charlie Brown “Chuck.” Her own nickname obscures her full name, which is Patricia Reichardt. (Although in some of the Peanuts TV specials, her name is Priscilla…which doesn’t make sense because “Patty” isn’t short for “Priscilla.”)

Cap’n Crunch

Before he enlisted in, uh, the cereal navy we suppose, Cap’n Crunch was apparently just a regular guy named Horatio Magellan Crunch.

Avengers

Of the Avengers, you probably know that Iron Man’s real name is Tony Stark and Captain America is also known as Steve Rogers, but Hawkeye’s actual name is a little obscure. It’s Clint Barton.

Mr. Peanut

The name is Bartholomew Richard Fitzgerald-Smythe…or Mr. Peanut to you.

Winnie the Pooh

Christopher Robin’s best friend in the Hundred Acre Wood isn’t really Winnie the Pooh—his proper name is Edward Bear.

Minnie

Minnie is a nickname, but what’s it a nickname for? As far as Minnie Mouse is concerned, it’s a shortening of Minerva.

Guy Smiley

Remember Guy Smiley, the perfectly named game show host on multiple game show parodies on Sesame Street? It turns out that name is too good to be true—he was “born” Bernie Liederkrantz.

Cookie Monster

Before his most notable characteristic (or mania) came to define him, Cookie Monster was just a regular monster known as Sid.

Casper the Friendly Ghost

Casper the Friendly Ghost’s full name is Casper McFadden. (Or at least it was.)

Milburn Pennybags

The mustachioed gentleman from Monopoly? His name is Milburn Pennybags.

Wizard of Oz

Pay no attention to the man behind the curtain, Oscar Zoroaster Phadrig Isaac Norman Henkel Emmannuel Ambroise Diggs…or “the Wizard of Oz.”