The heads of Rick and Morty took inspiration from one of the most critically-lauded dramedies ever when planning Season Eight, which is only fair — whoever wrote Kendall’s rap clearly was a fan of “Get Schwifty.”

At their hearts, Rick and Morty and Succession are both shows about family. Sure, those families may be dysfunctional, abusive and traumatizing, and the overbearing patriarchs may be personally responsible for destroying the world (or several worlds). But, ultimately, both shows rely on the strong and complex relationships between related characters to work, and the wounds these families manage to inflict on each other’s hearts, souls and constantly-wiped minds are the stuff of TV gold.

Rick and Morty co-creator Dan Harmon and showrunner Scott Marder recently spoke to IndieWire about the conception of the show’s eighth season, which began on Sunday with “Summer of All Fears.” In the season premiere, Rick and...