20 Multiversal MCU characters we would love to see in the main timeline

Modified Jan 28, 2025 10:26 ET

Tom hiddleston in Loki | Image via Marvel Studios

12) **Infinity Ultron (*What If...?)***

Infinity Ultron in What If...? | Image via Instagram: whatif

Infinity Ultron, from the What If...? series, would be an incredible addition to the main MCU timeline. This version of Ultron, who wields all six Infinity Stones, represents one of the most formidable and unstoppable villains we've seen. Infinity Ultron's ability to harness the power of the Stones, combined with his cold, calculated nature, presents a dire threat not just to Earth, but to the entire multiverse. Bringing him into the main timeline would introduce a near-omnipotent villain, pushing the heroes to their absolute limits.