Stephen Amell in Arrow Season 41 Arrow Star Stephen Amell Wants to Appear on Supernatural Supernatural is one of the most popular shows to ever broadcast on American television network The CW, with Jared Padalecki and Jensen Ackles winning legions of fans since their debut as brothers Sam and Dean Winchester all the way back in 2005. Now over a decade old, the series is still reeling in the viewers each and every week and, with 12 seasons under its belt, it shows no signs of slowing down.