Doomsday. On Tuesday, the actor posted a BTS picture from the set, flexing his biceps, drawing attention from fans.

Robert Downey Jr. is officially back on a Marvel set — and he’s bringing the love for his Avengers co-star Jeremy Renner with ...

Robert Downey Jr. rocks a mega-jacked look in a Doom body suit on the set of Avengers: Doomsday, fueling fan theories about ...

Robert Downey Jr. has shared a new photo from the set of Marvel Studios' Avengers: Doomsday, and it looks like he's packed on ...

Robert Downey Jr as Tony Stark/Iron Man and Jeremy Renner as Clint Barton/Hawkeye have fought side-by-side in several Marvel ...

Robert Downey Jr. just released an image of himself on Instagram seemingly to help promote a friend's endeavor as well as to ...

A brilliant fan theory connects Robert Downey Jr.'s alleged role in The Fantastic Four: First Steps to the upcoming MCU movie ...

Downey Jr., who has portrayed the popular Marvel character Iron Man since the superhero's first film was released in 2008, ...

Robert Downey Jr. is giving his old Marvel castmate's book a shoutout!

Robert Downey Jr. of Avengers Doomsday celebrates Mother's Day with Marvel artwork dedicated to his wife and mother-in-law.

Doctor Doom might take over Tony Stark’s identity in Avengers: Doomsday. Read on to learn the details of this new theory.

Before suiting up as Iron Man, Robert Downey Jr. found inspiration in a Spider-Man actor. Keep reading to know more!