The second season of the fantasy adventure series "The Librarians: The Next Chapter" has premiered on August 2, 2026 on TNT. Created by Dean Devlin and John Rogers, the show is a spinoff of the "Librarian" film series, and it stars Callum McGowan, Olivia Morris, Bluey Robinson, Jessica Green and Caroline Loncq. In season 2, Dominic Monaghan joins the cast in a recurring role as Merlin, the legendary wizard friend of King Arthur and the Knights of the Round Table.
Find out more about the series after the jump.