Felix is a salesman at Fusfeld Motors in "Failure is not a Factory-Installed Option". When Stan goes to buy Francine a new car, he gets talked into a model he doesn't want, then several more cars that follow including a blimp. After failing to get help from his sensei in Nepal, Stan gets advice from David Mamet on how to defeat Felix.
In "Love, American Dad Style", Stan tries to trade in his SUV but when Felix points out its value is not what Stan expects Stan decides to sell his SUV himself.
Felix is voiced by Scott Lowell.