The nameless one...
How about Groucho after Groucho Marx of the Marx Brothers.
I'm into giving really orginal names to my own pets. My doberman's name was Jet, named after the Paul McCartney song. My Whippet is named Ripley, after Sigourney Weavers' character Ripley in the Alien movies and my new dog is name Mingus, after a jazz bassist. Good luck on finding a suitable moniker!:D