Supernatural has officially come to an end on television after a 15-year run, and fans of the hit fantasy drama just aren't sure what to do with themselves. On Thursday night, the series finale premiered on The CW, marking the very last new episode to hit the airwaves. Immediately following the conclusion of the series, social media quickly began to fill up with posts from heartbroken fans detailing their emotional struggles in moving on with no more Supernatural.

"That series finale had me in tears at the end! Goodbye to my favorite TV show," posted one big fan. Says another, "I wholeheartedly bawled my eyes out the entire second half of the episode... words can not describe how this series finale made me feel."

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"The morning after the finale," another fan writes, posting a selfie after a night of bawling. "My eyes burn and are so puffy. < 6 hours of fitful sleep." "Just got off the phone with my sister. Cried all over again. Now I'm wondering how I'm supposed to be productive today," reads a similar tweet posted the next day.

Misha Collins, who played Castiel on the series, also posted his response to the final episode. Including a photo of himself with teary eyes, Collins tells Padalecki and Ackles, "You just did this to me. I'm going to miss Sam and Dean and #Supernatural. Love you guys." Supernatural actor Osric Chau, who had a recurring role as Kevin Tran, also tweeted, "With every beginning comes an end. What an incredible journey. Thank you for having me."

Before the episode aired, Padalecki and Ackles released a video of themselves delivering a message to the fans from the set as they worked on the show's very last shot. "I just want to thank you for being with us 15 years now, and it's been a great pleasure and an honor to have you supporting us all these years," Jensen Ackles says in the video.

"We wouldn't have made it here without you, so we know you're here with us. Sending love and gratitude," Padalecki adds.

Created by Eric Kripke, Supernatural starred Jared Padalecki and Jensen Ackles as Sam and Dean Winchester, following the two brothers as they hunt demons, ghosts, and other supernatural entities. Premiering on television in 2005, was an instant hit with fans, spawning what would become the longest-running American live-action fantasy series. Because the show has been a mainstay on television for the past decade and a half, it's that much more painful for longtime fans to say goodbye.

While Sam and Dean Winchester have reached the end of their road, Supernatural fans can still expect to see plenty more of Padalecki and Ackles. Padalecki will stick around on The CW as the star of the network's Walker reboot, set to premiere on Jan. 21, 2021. Meanwhile, Ackles will be playing the role of Soldier Boy in the upcoming third season of Amazon's hit series The Boys, although the character will be much more dastardly than Dean Winchester. Season 3 is set to begin filming in early 2021.