Patrick Stewart is speaking out against the rise of green screen acting, particularly within the Marvel Cinematic Universe. The “X-Men” alum, who reprised his iconic role of Professor X in 2022’s “Doctor Strange in the Multiverse of Madness,” said during a recent appearance on the “Happy Sad Confused” podcast that it’s “been challenging” acting “alone” with a green screen.

“I think the big scene, each one of the leading actors had the same experience. They were shot on their own,” Stewart said of his cameo. “It was frustrating and disappointing, but that’s how it has been. The last few years have been challenging.”

During the “Doctor Strange” sequel, Stewart appears alongside in another multiverse realm as a still-alive Charles Xavier Aka Professor X, serving on the Illuminati counsel with Mr. Fantastic (John Krasinski), Captain Marvel (Lashana Lynch), and Captain Britain (Hayley Atwell). Apparently, none of the actors were together for the scene.