I've been reading and been a fan of Steve Rogers as Captain America for 53 years. Chris Evans' Cap has been wonderfully brilliant and everything I imagined a Cap movie would be like since I was a little kid. I don't give a flying **** about Bucky or if he ever took on the mantle of Cap in the comics. If an actor wants to leave a role behind and not play the character again (or be forced to leave the role...how ya doing Terrance Howard?)....fine, it's a free country...leave the role. But the company does not have to kill his character off....just recast it. Tarzan, James Bond, Simon Templar, and so on and so on have been recast and the world goes on.