TMDb/Avengers: Doomsday Movie Avengers: Doomsday's secret cast grows as key heroes remain unannounced. Alan Cumming reveals hidden character names used to prevent leaks before December's ... May 10, 2026 AceShowbiz - Avengers: Doomsday is shaping up to be one of the most star-studded MCU events yet, with its cast expected to expand significantly before the film's December release.