Ursa Major seemingly slipped in without us noticing. Actor Olivier Richters says that his cameo appearance in Marvel's Black Widow saw him playing the MCU's first confirmed mutant – Ursa Major.

More importantly, Ursa Major is a mutant whose power is transforming into a large walking, talking bear who’s gone up against several of Marvel’s heavy-hitters.

We've got our first mutant joining the MCU and it's not Wolverine, Professor X, or any of the X-Men—it's Ursa Major. The Soviet Super-Soldier made his way from the pages of Marvel Comics and ...

Ursa Major drinks shots of vodka. Ka-Zar leaping forward and firing from his bow in Marvel comics. Marvel Comics X-Men Banshee Flying Through The Air With His Mouth Open ...