Shuma-Gorath is one of the most powerful Elder Gods within the Marvel universe and effectively reigned over countless dimensions for hundreds of thousands (if not millions) of years. In the comics, Shuma-Gorath is overtaken by a sorcerer named Sise-Neg, and, at the same time, this event was witnessed by another sorcerer capable of time travel: Doctor Strange.
Doctor Strange tends to face off against Shuma-Gorath pretty repeatedly in the comics. Strange is forced to summon Shuma-Gorath by Ebony Maw in the Marvel Comics story arc, Infinity, for example. Strange also resurrects every dead person in Las Vegas during the “Damnation” story which also just so happens to open a tear in the fabric of space and time allowing for many powerful beings to cross into our world — including Shuma-Gorath.
At this point, fans are pretty sure of the tentacle monster’s identity. “So it seems like the side-quest of What If? is to make sure we know that there’s a massive extradimensional tentacle monster out there, and I’m hoping it’s not just generic cosmic horror beastie shorthand and we actually could be getting MCU Shuma-Gorath,” tweets @Ritchie018.
People suspect we may see this creature in the live-action MCU too. “I think it’s pretty clear Shuma-Gorath is coming to the MCU. Showed up in What If..? twice now,” tweets @SpiderStrick. Perhaps he will be the true villain in “Doctor Strange in the Multiverse of Madness.”
We’ll almost certainly see our tentacle monster again, but whether or not they will be revealed as Shuma-Gorath is yet unknown.