Dexter is a dog that Carrie brings with her to the dog park for a date with Quagmire in "Must Love Dogs".
After a chance meeting during trick-or-treat night and a breakfast date, Carrie suggests their next date be at the dog park when she believes that Quagmire is a fellow dog lover. The latter, an affirmed dog hater, is forced to ask Brian to pose as his dog. While introducing him, he stumbles over the name and initially refers to him as Harvey Weinstein, because one can see his balls when he answers the door. However, he is relieved to hear that she didn't hear his bad joke because Dexter was busy licking her ear and changes the name.