The Anchor Being of 616 is a question that won’t go away. Deadpool & Wolverine introduced the concept. An anchor being is someone so important that when they die, their entire universe slowly withers. Logan was the Anchor Being of Earth-10005. His death doomed his timeline. Now everyone wants to know who the Anchor Being of 616 is.

The obvious answer is Tony Stark. The Anchor Being of 616 is the man who started the MCU. Iron Man kicked off the whole thing in 2008. He died in Endgame. Since then, the MCU has been in a weird place. Shows have been hit or miss. Movies have been divisive. The quality has dipped. That’s not a coincidence. That’s the Anchor Being of 616 dying and the universe feeling it.
Kevin Feige was asked about this. He didn’t confirm it. He didn’t deny it. He just smiled and moved on. That’s not nothing. That’s a tell. The Anchor Being of 616 is a concept Marvel introduced for a reason. They’re not going to waste it.

Other candidates exist. Some people say it’s Loki. He’s the God of Stories now. He holds the multiverse together. But Loki exists outside of 616 in a lot of ways. He’s a TVA agent. He’s a guardian of timelines. The Anchor Being of 616 should be someone who belongs to 616. Someone whose death changes the fundamental fabric of that world. That’s Tony Stark.
The theory also explains why Doom is a Stark variant. If the Anchor Being of 616 is gone, the universe needs a replacement. Enter Victor Von Doom. Same face. Same actor. Same weight. The Anchor Being of 616 might be a title that can be passed down. That’s the kind of twist Marvel loves.
Is it confirmed? No. Is it likely? Yes. The Anchor Being of 616 is either Tony Stark or someone we haven’t met yet. Given the MCU’s obsession with legacy and variants, Stark is the answer that makes the most sense. He’s the anchor. He’s the center. He’s the reason 616 exists at all.
Avengers: Doomsday will probably answer the question. Until then, the Anchor Being of 616 is the most interesting mystery in the MCU. Tony Stark is the best guess. Everyone knows it. Marvel just won’t say it.