Robert Downey Jr is returning to the Marvel superhero world after five years - but not to the Iron Man role which launched the blockbuster franchise.

Axar.az reports that the actor will make his comeback as Dr Victor Von Doom, a prominent villain in the comic books which spawned the popular film series.

Downey Jr will appear in Avengers: Doomsday, which is due to be released in May 2026, and a further instalment titled Secret Wars a year later.

Stars joining the Marvel franchise were unveiled at the Comic Con event in San Diego.

Downey Jr appeared on stage concealed behind Dr Doom's iconic mask and green cloak before unveiling himself to fans.

Speaking to reporters, he said: "I like playing complicated characters."

The 59-year-old was instrumental in launching the Marvel movie universe, starring in its first film Iron Man in 2008.

He last appeared in a Marvel film in 2019's Avengers: End Game.

The American actor won an Oscar for his role in Oppenheimer earlier this year.

Marvel is set to release a further three films in 2025 before Avengers returns to big screens.