Supernatural built a massive, loyal fan base that helped it thrive for 15 seasons. The series came to an end in 2020, with the finale wrapping up Sam and Dean's story, finally allowing the Winchester brothers to take a well-deserved rest. Since then, fans have wanted to see the cast back together for a proper reunion. While the actors have gone on to other impressive feats, like Jared Padalecki leading Walker and Jensen Ackles voicing Batman, they have yet to reunite for anything beyond minor appearances.