I’d say people in this thread are overlooking Hamill in TESB.

Obviously most of the credit goes to Frank Oz for making Yoda so believable and real, but what about Hamill? Part of why we’re sold on the green puppet being a wise Jedi Master is because Hamill makes it so easy for us to believe it as well, which can’t have been easy. Think about it, Luke’s only scene in the movie with other human characters is the one where he’s recovering after the Wampa attack, and even that is mainly a Han/Leia scene. And when Luke faces Vader, the big reveal and all? Hamill was reacting to words he wasn’t even hearing! So I think it’s worth pointing it out here how he also deserves some recognition for selling the Vader reveal and Yoda. If he didn’t make us believe, regardless of how fantastic Frank Oz’s performance might’ve been, it would’ve been real hard to be sold on the puppet frog.