I've been rewatching <em>Supernatural </em>recently and was shocked at how many actors I recognized from elsewhere, who I'd forgotten were in the show in the first place. A stand-out example for me was Corey Monteith in the second episode. I knew that he had starred in projects other than <em>Glee</em>, but nothing too notable, and I had completely forgotten he had been eaten by the Wendigo.