|Parents:|| Uncle Snail (father)|
Snail Boy (voiced by Tom Kenny) is Cow and Chicken's cousin and Mom and Dad's nephew. He is Cow and Chicken's maternal cousin through Mom's sister. When he got registered to Cow and Chicken's school, Flem and Earl made fun out of Chicken for him being related to a snail.
- His accent is similar to that of SpongeBob SquarePants and his appearance is that of his pet snail, Gary. Coincidentally, they were both voiced by Tom Kenny.