Jeff wears a red jacket with yellow sleeves, blue jeans, a blue T-shirt, and black sneakers. Jeff also has brown eyes and brown hair. Tammy wears a white shirt with an ultra pink shirt collar, a pink poodle skirt, and black shoes. She also has blue eyes and keeps her blond hair in a ponytail. They are both teenagers.
Like Holly, Jeff and Tammy are good friends with the Pound Puppies and the Pound Purries. When Marvin McNasty arrived at their pound, Jeff, Tammy, and the Pound Puppies were suspicious about his odd behavior. They don't like it when owners are irresponsible for taking care of their pets.
The Bone of Scone Incident
When the other Pound Puppies were brainwashed by Marvin McNasty's Mean Machine, Jeff and Tammy were tied up by Lumpy and Bones. Cooler rescued Tammy and Jeff. With Jeff and Tammy's help, Cooler turned the other Pound Puppies back to normal, retrieved the Bone of Scone, and saved puppy power.
It is unknown if Jeff and Tammy are boyfriend and girlfriend or siblings.
Joey Dedio, who voiced Jeff, is best known for voicing Wheeler on Captain Planet and the Planeteers.
Janice Kawaye, who provided the voice of Tammy, is famous for voicing Jenny on My Life as a Teenage Robot and Gi on Captain Planet and the Planeteers.