- "We like our thrills more refined. Pain. Hate. Fear. Like the finest wine."
Pearl and her brother Nash were powerful half-demons who were in the service of Twilight. They drew strength from primal emotions and could generate weapons of energy as well as blast green beams from their eyes. Their mother was a human who intentionally bred with a demon, believing that their children represented the "next stage of evolution." Trying to impress their master, the two of them massacred an entire Slayer squad with the exception of Nadira. After the downfall of Twilight, Pearl and Nash were recruited by Whistler to take vengeance on Angel and to somehow "save the world" and bring forth the next step of evolution.
In 1935, Pearl, along with Nash was born to a human, who intentionally bred with a demon, believing her children to be the next step in evolution. In 1940, at the age of five, they were schooled regularly by their mother about their "greater purpose" and taught to uphold and live up to it the best way they could.
In 1953, she and Nash were present in Rome to find partners to procreate with. She had sex with a Black Widower demon before it attempted to eat her. This demon was in debt with Spike who suddenly appeared, dropped in and became an accidental hero, decapitating the demon and inadvertently rescuing Pearl, causing her to proclaim him as her hero while Nash had been knocked out. Spike lit up a cigarette and quickly left with Drusilla, his business finished. Pearl became fascinated with the vampire. 
In 1970, Pearl and Nash both followed their mother's plan and bred with demons themselves. All of their children were killed by monster-hunters however, among then Alasdair Coames. Their mother suggested to them that instead of breeding with demons, they breed with humans posessing strong magic, since not being able to blend in made their children vulnerable. 
Working for "Twilight"
Many years later, Pearl and Nash were appraoched by Twilight who told them of his plans to create a new, evolved universe, which along with his promise of bloodshed made them agree to work for him. Under his leadership, they killed a squad of slayers.
After Angel renegaded on the Twilight affair, Pearl and Nash vowed revenge against him and began working for Whistler, something their mother supported. After the loss of magic, their mother was no longer able to prolong her life and asked her children to kill her.
Behind the Scenes
- Artist Rebekah Isaacs partly modeled Pearl's appearance on Karen O. In the Live Through This TPB artwork feature, the artist also says Pearl is modeled on Lady Gaga.
- Pearl and Nash are very similar to the children of the movie Village of the Damned.
- Angel & Faith
- "Live Through This, Part One"
- "Live Through This, Part Two"
- "Live Through This, Part Three"
- "Live Through This, Part Four"
- "Family Reunion, Part Two"
- "Family Reunion, Part Three"
- "The Hero of His Own Story" (Also in flashbacks)
- "Death and Consequences, Part Three" (in flashbacks)
- "What You Want, Not What You Need, Part One"
- Spike: A Dark Place