Marty McFly is obviously the main character of Back to the Future. Just a simple high school slacker, he soon gets the challenge of a lifetime.
As he goes back to the year 1955 when is parents were teenagers. He finds out his dad was a pathetic loser. And more than that.
Marty stop his dad from getting run over, not knowing that’s what brought his parents together. So his mom instead gets a crush on him.
While the timing was a billion to 1 odds when his car goes back to the future, it was very very satisfying.
It was ironic that in the original 2015 timeline, Marty grew up to be a loser. But at least he got the time and fate fixed later.
I did enjoy his time in Old West as Clint Eastwood.
At the end of the trilogy he decides that being called chicken isn’t worth everything. He finally learned.