Recent Endgame Encore footage and Russo brothers comments have confirmed additional appearances including Bruce Banner/Hulk and TVA agents like Mobius and OB, while explicitly teasing further unannounced cast members beyond the already expansive lineup of over 30 confirmed roles. This includes MCU staples such as Steve Rogers, Thor, Loki, Sam Wilson, Shang-Chi, the full Fantastic Four quartet, Thunderbolts/New Avengers members like Yelena and Sentry, and Fox-era X-Men led by Professor X and Magneto, alongside Doctor Doom. With the December 18 release approaching, trader consensus favors these officially backed characters amid strong pre-sales and promotional campaigns, though high-profile unconfirmed names like Spider-Man or Wolverine remain speculative pending any final reveals.