Parker Bagley As Jason Dilaurentis In "Pretty Little Liars", Replaced By Drew Van Acker
Just as Jason's narrative on Pretty Little Liars started to become bigger and more significant, Drew got hired to deliver the much-needed drama for the character. The role became so large, the fans practically demanded for the character to be recast. Notably, Jason returned to Rosewood during Season 2 and began dating Aria.
Also, how would anyone be able to tell when some background character in GoT was replaced? There were a ton of them, and they all looked the same.