When Supernatural‘s 11th season began airing in 2015, the series effectively became the longest-running American fantasy series on TV. After so many seasons and now more than ten years since Supernatural first began, the show has seen a lot of celebrity guest stars and appearances by actors and actresses from before their careers skyrocketed. Of course Supernatural has seen some very big and memorable stars appear throughout the series, but others have been long forgotten. Through 12 seasons, take a look back on 12 celebrities you forgot guest starred on Supernatural:
12. Alden Ehrenreich
The name Alden Ehrenreich still might not mean a lot to TV and movie fans, but it soon will. The up-and-comer has been tapped to play the coveted role of a young Han Solo in the highly anticipated Stars Wars film based on the beloved character. Before landing the huge role, however, Ehrenreich was seen in only the second episode of Supernatural as Ben Collins, the younger brother of a hiker who had gone missing. Now, he has gone to movie roles in films such as Beautiful Creatures, Blue Jasmine, Hail, Caesar! and, of course, the upcoming Han Solo films, meaning everyone is going to be seeing a lot more of the actor who got his start on Supernatural.