His name is Tucker. A.K.A:
The Fuzzy-Bungus Among Us.
Mister Funky Whiskers.
Cat-hole. (as in, "Shut Your Cat-Hole!")
Digger. (but not much of a burier)
The sad truth is, I can't remember even half of the things he's been called through the years. Meanwhile, Simon is pretty much just Simon.
I love them equally of course.