Searxng/Moon Knight Disney+ tv Celebrity Oscar Isaac hasn't returned as Moon Knight in 4 years. His contract gives him creative control, meaning he'll only reprise the role if the story excites him. May 7, 2026 AceShowbiz - Oscar Isaac first appeared in the Marvel Cinematic Universe as the enigmatic superhero Moon Knight four years ago. Since then, fans have eagerly awaited his return, but the timeline for his comeback remains unclear. Unlike fellow Marvel Disney+ stars like Tatiana Maslany's She-Hulk and Iman Vellani's Ms.