The Magnus Archives is a supernatural horror existentialist fiction podcast written by Jonathan Sims, directed by Alexander J. Newall, and distributed by Rusty Quill. Sims, voicing a character of the same name, stars as the Head Archivist for the fictional Magnus Institute, a London-based paranormal research institution. "The Magnus Archives is a weekly horror fiction anthology podcast examining what lurks in the archives of the Magnus Institute, an organisation dedicated to researching the esoteric and the weird." Five seasons were released between 2016 and 2021 on various audio streaming services, along with an official subreddit created by Sims: r/TheMagnusArchives.