Pearl is a little female ghost, she has blue eyes and yellow hair (orange in some appearances) she wears a pink bow in her hair.
In her early appearances, Pearl is described as a smart girl that loves school and enjoys reading, like Casper she is calm and doesn't like scaring, she disapproves when Spooky tries to scare people, as a girlfriend she can be really short-tempered and jealous.
In The Spooktacular New Adventures of Casper her personally differs from her comic counterpart, she is portrayed as the typical dumb blonde, she is slow and rather clueless.
In the original Harvey Comics Universe Spooky met Pearl in the comic book Spooky #3, when the Tuff Little Ghost was trying to escape from the truant officer who happened to be Pearl's father, and he accidentally found Poil's house, Originally she was portrayed as an intelligent girl that liked reading.
She is very often a supporting character in the Spooky comics, and she also appears in The Spooktacular New Adventures of Casper and Casper's Haunted Christmas.
Pearl, much like Spooky has a Brooklyn accent. Pearl often hates it when Spooky scares people since it gets in the way of their relationship.
- Pearl has the same physical appearance as Gloria Glad in the Richie Rich series.