When Supernatural launched way back in 2005, nobody could've ever anticipated that it would have the staying power to last an entire 15 seasons before finally wrapping up late last year.
The primary reason for its success is of course the stupid-good chemistry between leads Jensen Ackles and Jared Palecki, as loveable travelling monster-hunter brothers Dean and Sam Winchester.
And though Supernatural's famously committed and passionate fanbase might profess to know the ins-and-outs of every single episode back-to-front, that's perhaps easier said than done when there are a staggering 327 episodes to choose from.
And so, only the most impossibly hardcore, tirelessly dedicated Supernatural fans will have a hope in Heaven or Hell of nailing 100% on this insanely tricky Dean Winchester quiz.
Can you recall the most insignificant details about Dean's life, his most bizarre quips and quirks, as well as the more iconic, unforgettable ones? What about his various brushes with death? It's time to find out once and for all.
But fear not, because no matter how you do the answers are at the end as ever. Good luck!