Frida
Frida Kahlo Bronstein is an American Bulldog puppy that was born on December 24, 2007. She is constantly attempting to make friends with The Rat. Here's a picture:

The Rat
Uncle David's Kisses (AKA The Rat) is a psychotic, paranoid old lady of a teacup poodle. She gained the nickname The Rat based on her size (she weighs seven pounds) and her appearance as well.