Star Dane DeHaan and makeup department head Howard Berger explain how they and special makeup effects artist Jamie Kelman pulled off the Frankenstein look of a scalped Mormon settler and his rotting head following a wagon train massacre: "I wanted to destroy him from the outside.

In this final episode of American Primeval, a fanatical Brigham Young rants about his God purifying the world from wickedness as his Mormons, fresh off a genocidal attack on the Shoshone, solidify their claim on Utah by burning Fort Bridger to the ground.

The American Primeval ending is reflective of the way the series started with epic death and destruction. We shared a list of the major deaths in the season finale.

Was he somewhat responsible? Did he have nothing to do with it? Like we had to make choices," actor Kim Coates told Decider.

Ahead, find out about the cast of American Primeval and their roles. Betty Gilpin’s Sara is a wealthy mother searching for her husband and father-in-law, setting out on a journey with her son Devin while also harboring a secret that threatens everything: She killed a man back in Boston and is now likely on the run.

American Primeval is a massive Western epic, and here is every group and faction in the new Netflix miniseries and what they do in the show.