While The Winchesters is Supernatural's first live-action spinoff series, the first actual spinoff of the popular show came in the animated realm. I think that Supernatural: The Anime is worth a watch, as it puts key events of the series through a new lens and even offers some adventures that are exclusive to the anime version of Supernatural. That said, I feel like The Winchesters was definitely the most exciting out of the two Supernatural spinoffs so far.
