Alter ego

Latin phrase; alternate self

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

change

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:

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