re: #124 Dr Lizardo

That was at the insistence of Werner Herzog. The plan was to use CGI for that character, but Herzog talked the folks behind The Mandalorian into using a full-scale animatronic instead; he believed (correctly, IMO) that it would look more realistic on the screen and give the actors an actual object to interact with.

Yes, actor/CGI stand-in interaction is a major flaw in a lot of movies