What surname does Princess use in The Powerpuff Girls?

Princess uses the surname Morbucks in The Powerpuff Girls.

Princess Morbucks is a wealthy schoolgirl who wants to become a Powerpuff Girl. Her father’s money allows her to obtain expensive equipment and costumes, but the girls generally reject her attempts to join them because she lacks their teamwork and selfless attitude.

Her name is a pun on the phrase “more bucks,” referring to money. That joke is central to the character: Princess often treats superhero status as something that can be purchased rather than earned.

Princess is sometimes mistakenly remembered only as “Princess,” but Morbucks is her established surname. She is a recurring antagonist and rival rather than one of the original trio created by Professor Utonium.