Ep 19. Kloger

In American Dad! season 12 episode 19 titled "Kloger," Roger becomes obsessed with a fictional character named Kloger, who is a combination of himself and the family's neighbor, Klaus. Roger starts to believe that Kloger is real and begins spending all his time with him, much to the dismay of the rest of the family.

Meanwhile, Steve and his friends stumble upon a mysterious book that they believe is a magical spell book. They use it to cast spells and try to gain magical powers, but their attempts only result in chaos and mayhem.

As Roger's obsession with Kloger grows, he begins to take on more of Klaus's traits and even starts wearing an orange jumpsuit like Klaus. The rest of the family tries to intervene and bring Roger back to reality, but he resists their efforts and continues to hang out with Kloger.

In the end, the family devises a plan to snap Roger out of his delusion by staging a fake battle between Kloger and a made-up character named Zloger. The plan works, and Roger returns to his normal self.

Overall, "Kloger" is a hilarious episode that showcases the wacky and zany humor that American Dad! is known for. The episode also includes several pop culture references and nods to other films and TV shows, making it a must-see for fans of the genre.