Is it normal to dream about people you don't know?
Yep.Totally normal
Yes, it’s completely normal to dream about people you don’t know. Dreams often mix familiar details with unfamiliar faces, or create people who feel real while you’re dreaming.
Absolutely. Your brain can pull together bits of faces you’ve seen in passing, people from stories, and pure dream-world invention. You may wake up sure the person was a stranger, even if their face borrowed a detail from someone you once passed on the street.