None other than the Mad Titan himself, as Thanos turns on the Guardians of the Galaxy and pledges himself to the Mar-Vell of the Cancerverse.
Apparently all Thanos wants is death, and if Mar-Vell can deliver it, then Thanos will do whatever he wants.
Now the question really is, who didn’t think that death obsessed Thanos would betray his comrades after discovering he was immortal? It’s Thanos! You should be worried when he doesn’t betray you!
