The Internet was set ablaze this past July when it was confirmed that Robert Downey Jr. would return to the Marvel Cinematic Universe. However, the Oscar winner won’t be playing his fan-favorite character Tony Stark (a.

k.a. Iron Man).

Instead, he’ll become the latest actor to take on the role of the nefarious Doctor Doom. While the MCU fandom has been discussing that major development, a handful of stars associated with the franchise have since weighed in. Anthony Mackie went on a hilariously chaotic rant about the Doom announcement and, unsurprisingly, it’s now going viral on TikTok.

Marvel Studios confirmed the Doctor Doom plans during its panel at San Diego Comic-Con 2024 this summer. It was a dramatic display, as it saw a cloaked and masked RDJ roll up on stage with Doom minions , before revealing himself to a sea of roaring fans. Shortly before all of that fanfare, Anthony Mackie took to the stage to promote his highly anticipated film, Captain America: Brave New World alongside some of his co-stars.

As Mackie jokingly explained in a viral TikTok video from ET, he believed that he and his cohorts had won the night – before they were upstaged by the return of the MCU OG: You know what makes me mad? I thought I was good. Like, I came out and everybody was like 'Oh my god, that's the best trailer ever.' I'm like 'I got Harrison Ford.

Ahhhh!' So, we come off stage, and I hear 'Robert Downey Jr. just announced that he's coming back to the universe.' And I'm like 'But .