Supernatural and The Vampire Diaries were two popular TV shows that captivated audiences with tales of paranormal beings coexisting with humans. Given the similarities in theme, it's not surprising that the idea of a crossover episode was conceived.
These days, crossovers have become quite common, especially on The CW, the network that aired both The Vampire Diaries and Supernatural. Strangely enough, these long-standing shows, with the former even having spinoffs in The Originals and Legacies, never explored this trend. However, in 2018, Supernatural finally brought fans' dreams to life with a crossover featuring Scooby-Doo. Interestingly, in the same year, news emerged about
Back in 2009-2011, when The Vampire Diaries was in its early seasons and Supernatural was in its fifth or sixth season, the Supernatural team approached The Vampire Diaries to develop a shared story. Julie Plec, co-developer of The Vampire Diaries, revealed this during a 2018 promotional Q&A. She stated, "Kevin and I were like 'absolutely not, because we are vampires and werewolves. We don't have demons. We don't have Hell. We don't have the devil. We don't have any of that stuff! It's like two completely different supernatural universes!'"
Ironically, The Vampire Diaries later introduced Arcadius, the creator of Hell, and both shows even shared a few actors throughout their seasons. However, the desire for a crossover existed long before this revelation. At a 2014 NerdHQ panel, Jensen Ackles, who portrays Dean Winchester in Supernatural, responded to a question about crossovers. He amusingly suggested wiping out The Vampire Diaries, and the crowd seemed to embrace the idea.
As The Vampire Diaries announced its eighth and final season in 2016, Ackles revisited the notion, expressing a desire for both shows to at least acknowledge their shared universe. Ackles joked about loaning The Vampire Diaries an Impala, the iconic car from Supernatural, as a nod to their connection. Misha Collins, who plays Castiel in Supernatural, chimed in, suggesting a black screen accompanied by screams to finalize the crossover.
While we'll never know for certain, it's clear that the Supernatural team was eager to pit their characters against the supernatural beings of The Vampire Diaries. Julie Plec even admitted that a crossover with Supernatural might have been a fun idea. "Looking back at it now, that would have been fun!" she commented.