Alter ego

From Oneiropedia

An alter ego (from the Latin for "other I") is an identity that one uses in addition to their first identity. They are used for a number of reasons, such as privacy, safety, anonymity, and aesthetic appeal.

Examples

• James Joyce used the alter ego Stephen Daedalus in books like Portrait of the Artist as Young Man and Ulysses.
• Peter Parker's alter ego is Spiderman.
• John Lennon once used the alter ego Winston O'Boogie.
• Alter egos figure prominently in the novel Lolita.