If we ever get a Mandoverse series that has Han, Luke and Leia return. They should have Graham Hamilton play Luke without the CGI/deepfake, Alden Ehrenreich play Han and Ingvild Deila play Leia. With Donald Glover returning as Lando
Also if Mara Jade were to be in this hypothetical series. My suggestion is Léa Seydoux and if Talon Karde is introduced, then Idris Elba or RDJ and if we see Jacen Syndulla, Jacob Trembly, if we see young Ben Solo, Caleb Malis for Ben.