Alter ego

This article is about the Latin term. For The German term, see Doppelgänger.

An alter ego (from Latin, "other I") is another self — a second personality within a person. It is also called leading a double life. The term "alter ego" was first used in the 19th century. The term was invented by psychologists when talking about dissociative identity disorder.

The Strange Case of Dr Jekyll and Mr Hyde has an example of alter egos. Mr. Hyde was Dr. Jekyll's evil alter ego (same person, different personalities).

In literature

The term is also used in popular fiction, like comic books, for the secret identity of a superhero, vigilante, or crimefighter. The character would do this so people won't know that he or she is fighting crime. Examples of characters using alter egos include:

• Superman: His alter ego is Clark Kent.
• Bruce Wayne: His alter ego is Batman.
• Peter Parker: His alter ego is Spider-Man.

Music

Sometimes an artist uses an alter ego. Here are some examples:

• Ziggy Stardust was an alter ego of David Bowie
• Marilyn Manson is the stage name of Brian Warner
• Slim Shady is the alter ego of rapper Eminem