Karam has, unusually so for a high-level wrestling figure, never completely defined himself by the sport in his 34 years as a head coach. He has a lot going on. For one, he’s a grandfather.

When Marvel Studios introduced Kang (a.k.a. He Who Remains) in Loki, it felt like the MCU was about to get an even greater big bad than Thanos. However, the studio made a major misstep by adding ...