Tonight’s episode of American Dad is called the “Da Flippity Flop.” In the “Da Flippity Flop” episode, Klaus discovers his original human body, but Stan refuses to help him switch back. So, Klaus steals Stan's body and Stan becomes the fish. Meanwhile, Roger turns the attic into a gym, and tries to pressure Steve into a long-term membership.
Voice cast includes Seth MacFarlane as Stan Smith and Roger the Alien, Wendy Schaal as Francine Smith, Rachael MacFarlane as Hayley, Scott Grimes as Steve, Dee Bradley Baker as Klaus, and Jeff Fischer as Jeff.
The “Da Flippity Flop” episode of American Dad airs on Sunday, December 22 from 7:30 PM to 8:00 PM ET/PT on FOX.