noun
narrator
NAIR-ay-ter/ˈnæreɪtər/
A person or voice that tells a story or describes events.
The narrator tells the story from a young child's perspective.

Etymology
The ending identifies whoever performs the telling. Since narrare literally meant “to make acquainted with,” a narrator is the person or story-voice that makes an audience acquainted with events.
In context
there's no narrator you know like in a novel telling us what's going on inside of them we have to see it
More examples
- The documentary's narrator explains how wolves hunt.
- I recognize the narrator's voice from another audiobook.
- The novel has two narrators who remember the same day differently.
Forms
Similar words
- storyteller
- Emphasizes telling stories, not necessarily a voice within one.
- commentator
- Explains or discusses events rather than necessarily telling a story.