While some pets made outside appearances from the Whisker Haven series via merchandise, books, and the app game, there are a few pets who were only seen within the show itself (and that is not counting the Critterzens).
Characters[]
Unconfirmed pet[]
This pet's only appearance was in the background of Tunnels of Fun.
Poodle[]
This is a pink poodle who appears in the background of Ashes to Ashes.
Sea Monster[]
The Sea Monster is what it's name implies. It's described as a messy and rambunctious creature. It's only appearance is in River's imagination in Pawcation Investigation.
Unnamed bunnies[]
These are brown bunnies, similar to Berry's design, who appears in the crowd in Ashes to Ashes. One bunny wears a pink night cap as the other wears a light blue bow.