Jensen Ackles and Jared Padalecki joined fellow cast members and creator Eric Kripke in sending off their long-running CW series, which wrapped filming on Thursday. “To those I have worked with on this journey and to those who have watched and supported…you will never understand my great appreciation for you ‘Thank you’ doesn’t cover it," wrote Ackles. "There just aren’t words. I’m so grateful for these memories that I will carry with me forever. What a ride it has been. And what a run."