Doomsday" cast in a five-and-a-half-hour stream that revealed actors returning to the MCU via their casting chairs. Things kicked off with Thor actor Chris Hemsworth and ended with Robert Downey Jr. Read more: Marvel Announces Star-Studded Cast for 'Avengers: Doomsday' Downey was announced to return to the MCU in a big way,

Doomsday" cast is going to be expectedly massive but these major Marvel actors weren't in the big cast announcement.

Holland, who has played Peter Parker since Captain America: Civil War (2016), has previously expressed interest in stepping away from the role. However, Spider-Man 4 is currently in development, with Sadie Sink rumored to join the cast. This has fueled speculation that Spider-Man 4 could mark Holland’s farewell to the MCU.