Okay, I totally couldn't pass up commenting on this thread.

My two kittens (cats, I suppose - they're fourteen months old, and over ten pounds apiece, but they still act like kittens!) are named Toby and Xander - Toby after the character of the same name on
West Wing, Xander after the character of the same name on
Buffy. They're brothers.
Toby is also known as: Toby-Tobe, Toby-monster, Toby Twinkletoes. He's the little delicate girly one - if he'd been an only cat, or lived with a female cat, he'd likely be more masculine, but he's pretty much outdone by Xander in every aspect. We call him "everyone's best girl."
Xander is also known as: Xan, Xansa/Xanza/Zanza, Zanzibar, Xandermonkey. He's the big rough-and-tumble explorer, except at night when he likes to curl up next to me in bed and nurse on my fingers.
My fiance refers to them as a superhero duo, XANDERCAT! and tobykitten.