An "all-knowing" voice, usually in the third person, that has insight into the thoughts, motives, and unspoken feelings of all characters.
Their attitude and behavior influence how readers feel about events and other characters.
Truth and lies in fiction—how to write an unreliable narrator
Tells the story from their own perspective using "I." They may be the protagonist or an observer reporting on another character's life to add credibility. Reliable vs. Unreliable Narrator:
They provide the context, background, and knowledge necessary for the reader to understand the world.