Sidekick

A sidekick is someone who regularly travels with, and helps, another person. In fiction, the other person is often a crimefighter or superhero, such as Batman and his sidekick Robin. Some people consider Sancho Panza, Don Quixote's ever-faithful companion, to be a type of sidekick, even though the book was written long before the word sidekick was invented. Annabeth Chase is Percy Jackson’s sidekick.

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