Rug
Rug Rat
Ruggles
Rugrat
Rum
Rum Tum
Rum Tum Tugger
Rumball
Rumblekitty
Rumblepurr
Rumbles
Rumhead
Rumi
Rumpelstiltskin
Rumple
Rumplenuts
Rumples
Rumplestiltzkin
Rumpleteazer
Rumple-Teazer
Rumpole Of The Bailey
Rumpus
Rumpus Cat
Runner
Runt
Runtis
Runway
Rupaul
Rupert
Rupert (middle name: Biggles)