Fans are demanding the return of Henry Cavill as Superman due to his portrayal of the iconic character. Many believe that Cavill perfectly captured the essence of Superman, both in terms of physicality and characterization. He brought a sense of humanity and vulnerability to the role, while also conveying the character's powerful and noble nature. Additionally, Cavill's chemistry with his co-stars, particularly Amy Adams as Lois Lane, was well-received. Fans have invested in Cavill's Superman, and they want to see more of his story. They believe that there is still potential for more movies with Cavill as Superman, and they want to see him reprise the role in future films.