"My name is Inigo Montoya..."
Okay, so we don’t know who this mysterious Cole is, except that he was a kid in season 1 yet is hunting Dean down now for something that happened way back when. I think I’ve found a great thematic backstory for him that I think would work amazingly with the current…
This is a great bit of speculation here! I hope you don’t mind if I add a twist to it: What if Cole represents the version of Sam and/or Dean who was raised by loving people who didn’t become obsessed with revenge? So he’s like a doppelganger to them.
So, either he had a mother who raised him and moved on after her husband’s death, or a Bobby-like uncle who gave him a stable home. But Cole was the one who still wants revenge or even just answers. Perhaps he even has a younger brother who has just left for college with the family’s blessing and is now free to pursue Dean on his own? Or he’s the younger brother and went into the military or some other form of training that gives him the extraordinary hunting skills he has now.
UGH I want any or all of this!
I like the idea of Cole being a mirror to Sam and Dean (because yay mirrors/parallels!) - parent killed by a ‘demon,’ sets off on a life of revenge or at least tracking the demon down, OR maybe, like Dean, he wasn’t actually interested in revenge, but another family member was - estranged wife of Cole’s dad maybe? Mirroring Dean and John. Only unlike John, Cole’s mother didn’t take her child with her on her quest but left Cole in a stable home, like larinah suggests. Then during her hunt she gets killed, and that’s what drags Cole into the whole thing?
You know what I think would ALSO be cool? If Cole doesn’t know what Dean looks like. He just knows Dean’s name. And when he runs into demon!Dean, at first he doesn’t realise this is his father’s killer. And they end up working together tracking down another demon or something, Cole thinking Dean is a kinda scary but decent guy helping him out. AND THEN he learns that this guy he’s been working with and started to develop something of a friendship with is his father’s killer, and faces a dilemma - now he KNOWS Dean does he still want to kill him? (or demon!Dean could cotton on to how Cole is trying to track down ‘Dean Winchester’ and LIE to him about who he is, pretend some other demon is this ‘Dean’ and offer to help Cole kill him, and during the deception Dean comes to respect and like Cole and genuinely doesn’t want him to learn the truth about who he is because he doesn’t want to lose a friend… maybe maybe demon!Dean could tell Cole CROWLEY is ‘Dean’ and use Cole to try and kill Crowley? :p …nah though, demon!Dean wouldn’t need help to do that, so that doesn’t really make sense, oh well!)
Cole excites me, anyways :)