George Lopez (2002)

S5E3 George's Dog Days of Bummer

George is eager to find a friend for his mother, who has been feeling down. However, when a boisterous biker, played by guest star Duane "Dog" Chapman, declines to surrender the stray dog that George's mom has become attached to, George resorts to pretending to be the mayor. In a unique twist, Los Angeles Mayor Antonio Villaraigosa makes a cameo as himself.