In advance of the season one finale of “The Librarians: The Next Chapter,” TNT has revealed the guest stars set to appear in the second season of the fantastical adventure series. Hailed for its blend of myth, mystery and magic, the sophomore season, airing in 2026, will feature appearances from a wide range of celebrated talent, including Screen Actors Guild Award nominees Dominic Monaghan (Lost, The Lord of the Rings) and Jeremy Swift (Ted Lasso, Downton Abbey) as well as Josh Gates (host of Discovery Channel’s Expedition Unknown), Stefan Kapičić (Deadpool), Oliver Dench (Hotel Portofino, Pandora), Ty Tennant (House of the Dragon, War of the Worlds), Flula Borg (Pitch Perfect 2, The Rookie), Alan Emerys (Translations, Host), Malcolm Sinclair (Casino Royale, Andor), Reece Ritchie (The Lovely Bones, The Ark), Cat White (Ten Percent), Gledisa Arthur (Everyone Is Going to Die), Jack Cunningham-Nuttall (Loki, The Crown), Danny Rea (Kingdom), Luka Divac (Boys and Girls) and Alex Henry (...