Despite this, Cox showed interest in the game and even started playing it. However, he is not sure he would want to play Gustave again in a possible screen adaptation. In an interview, he offered his own casting choice:
My involvement in this, however minor it may originally have been and however much it has now expanded, was nothing but an incredibly humble and pleasant experience. So yes, absolutely, yes. I thought that if they make a film, they should cast Robert Pattinson in the role, and I would voice the character. Because then they would have an almost exact Gustave from the game.
Cox believes that Robert Pattinson bears a strong visual resemblance to the character. At the same time, he proposed an unusual option: combining the actor's performance with his own voice acting.