Marvel’s “What If…?” series has been a lot of fun. The glimpses into different realities are always interesting, and Jeffery Wright has done a great job as the Watcher, the series “host” and guide to what could have been. The role has slowly shifted from impartial observer to occasional participant and humorous commentator. He breaks the fourth wall from time to time, and gets in a few of those in “What If Captain Carter Fought the Hydra-Stomper?”