"Villain Male Rat" is not an official name.
Villain Male Rat
Joker rat
Gender Male
Animal Rat
Hair color Green
Complexion Light gray
Cartoon debut "Double Dare"

"Villain Male Rat" is an unnamed enemy of Dark Bunny. He, "Villain Female Aardvark", and "Villain Male Aardvark" were walking in a dark alley way until Dark Bunny confronted them. He also appeared in Mr. Marco's tape of the episode.