Combat Skills: Guardians are highly skilled in tactics, surviving extreme situations and combat.
Self-control: Guardians are there to protect not merely the Librarian's health but also their sanity, serving as a voice of reason when needed.
Loyalty: The Guardian must be willing to sacrifice him or herself if the Librarian is in mortal danger
- Charlene (Judson's guardian,first guardian)
- Nicole Noone (Flynn Carsen's first guardian; fate unknown)
- Eve Baird (Guardian to the curent librarians and Jenkins)
- Lamia (Cassandra's guardian in alternate timeline)
- Since the guardian is responsible for protecting the LibrarianThe Library" itself protects the Guardian.