Mervis is one of the supporting characters from the Nickelodeon animated TV show, CatDog. He is a pig and he is usually seen with Dunglap and also another good friend of CatDog's. He usually works as a mailman and dislikes being chased by Dog. Even though he and Dunglap are friends, they are often seen fighting with each other.
- Mervis works as a paper boy in "Fistful of Mail".
- He is a box licker for Kavity Krunch Cereal factory along with Dunglap and CatDog.
- Mervis and Dunglap has a job at the Butt Buster the large roller coaster.