Super Secret Pup Club are young puppies.
- Rebound is Niblet's playful little sister.
- Cupcake is Cookie's adopted daughter.
- Patches is a Dalmatian puppy.
- They are friends of The Cutie Mark Crusaders (Apple Bloom, Sweetie Belle and Scootaloo).
- They, along with Lucky and the Pound Puppies gang, will make their appearances and meet Winnie the Pooh, Yogi Bear and friends in Pooh's Adventures of The Theory of Everything, where they reveal to be Scootaloo, Sweetie Belle and Apple Bloom's friends.
- They will guest star in Winnie the Pooh Runs Away from the Twister, Pooh's Adventures of Fantastic Four (2005) and Pooh's Adventures of Fantastic Four: The Rise of Silver Surfer.
- They also guest star in Roary and Theodore's Adventures of Dinosaur.