Supernatural is a long running American television series that premiered in 2005 and followed brothers Sam and Dean Winchester as they hunted demons, ghosts and monsters. Dean, played by Jensen Ackles, was known for bravado and sarcasm, so moments where he screamed in fear became fan favourites and were clipped widely online. Fans shared those scenes on forums, YouTube and soundboards as reaction audio, and this scared line joined other Dean quotes used to mock exaggerated fear. Its popularity reflects how often the show mixed horror with comedy.