MCU Phase 4: Every Single Character Confirmed (So Far)

20. Thanos (Josh Brolin) - What If?

While it would be nice to see him in a live action movie again, the purple-chinned monster heel of the Infinity Saga is back for What If...? Presumably, his return will be linked to whatever alternate story is told for Infinity War.

Since Thanos is very much a "there but for the grace of God go I" sort of character and a product of his circumstances, it's definitely interesting to explore what he might have been if he hadn't become the Mad Titan. Anything that gives us more Josh Brolin is great, really.