- He is a cat version of Rubble.
- Cat Rubble is the only member of the Kitten Catastrophe Crew who has a vehicle which is a miniature version of Rubble's construction rig as seen in "Pups Save Heady Humdinger".
- Cat Rubble's bulldozer is shown to be much smaller in comparison to Rubble's construction rig to the point Ryder could stop it from moving with his foot after it rolled down the hill the KCC were working on.
- When informing the PAW Patrol of Cat Rubble's plight, Ryder describes him as "Mayor Humdinger's Bulldozing Kitten" in reference to his vehicle.
- Additionally he can snowboard like his PAW Patrol counterpart, even competing against him in "Pups Save a Snowboard Competition".
- Ironically, while Cat Rubble dislikes the PAW Patrol like the rest of the KCC, his PAW Patrol counterpart finds the KCC adorable and though Rubble is aware of their habit of cheating and causing mischief, he doesn't hold it against them and is even shown to be determined to help rescue his KCC counterpart when the kitten's bulldozer ended up teetering on the edge of the monument the KCC were building in "Pups Save Heady Humdinger".
- He is the first cat in the KCC to talk by the power of the Mighty Meteor crystal, but later, he is reverted to normal when Victoria yanks the crystal away from his collar in PAW Patrol: The Mighty Movie.
- Thus, he is the sixth cat to talk in the whole series. The others being The Copycat and the Cat Pack.
- He is also the second antagonist cat to speak.