When Game of Thrones ended back in May, it left behind a huge vacuum that needs to be filled. Several TV series have debuted in the same genre as contenders, and some of them have been quite good. HBO launched His Dark Materials and Watchmen this past fall, and Amazon’s Carnival Row was released even before that. Winter then came with the first season of The Witcher , which might be the best Thrones alternative of the bunch. However, there’s one other Thrones rival that has the potential to become the most exciting Game of Thrones replacement. That’s Amazon’s Lord of the Rings TV series that’s currently in production, and the main cast was just confirmed. The new TV series will serve as a prequel to the first Lord of the Rings trilogy, and it’s based on a different period of adventures from J.R.R Tolkien’s rich Middle-earth universe. It’s too early to discuss plot details or spoilers though, because the show hasn’t even started shooting. At TCA this week, Amazon just revealed the main cast of the series.