Dan Brown's The Lost Symbol: Characters Dan Brown's The Lost Symbol Adventure, Thriller 9/16/21 – 11/18/21 NBC United States https://www.peacocktv.com/stream-tv/dan-browns-the-lost-symbol GeneralEpisodesCastCharactersGallery Characters See all characters → Robert Langdon Katherine Peter Agent Sato Nuñez Katherine Solomon Peter Solomon Agent Inoue Sato Alfonso Nuñez Mal'akh