Donald, Sandy, and Mr. Cat Face

Donald, Sandy, and Mr. Cat Face are minor characters in Gravity Falls. They are the pet cats of Lazy Susan, a waitress who works at Greasy's Diner.

History
They are mentioned in "Dipper vs. Manliness," at the end of the episode when Lazy Susan was calling Stan telling them to say "hello". The cats then got wound up and meowed wildly.

Later, they are actually seen in "Summerween," when Susan is dressed up as a ball of yarn.

Personality
While Donald and Sandy seem mostly sullen, Mr. Cat Face is sometimes defiant and easily irritated. They like balls of yarn, as seen when two of them climbed up to Lazy Susan's shoulder when she dresses as a ball of yarn for Summerween.

Appearance
All of them have light grey fur. For Summerween, Lazy Susan put white cat masks on them. It also looks like they have black eyes, although that may be part of the masks.