Christian is the flamboyant, eccentric, only male child of the Frost family. He was the beacon of light and tranquility to his younger sister, Emma Frost, in a family where backstabbing and abuse ran wild and in obscene quantity. Scorned by their father for having a less-than-normal sexuality, Christian found strength in his new-found orientation and left the family home to reside with his current boyfriend.

Christian was the one member of the family who didn't want to have anything to do with the family business. Yet when his father Winston Frost learned Christian wasn't straight, he threatened to disown him if he didn't dump his boyfriend, Dante Ortega, and move back home. Christian defied his father and left the family, only remaining in contact with Emma. When Winston retaliated by using his great power and influence to have Christian's boyfriend framed and deported, Christian became deeply depressed and turned to substance abuse. Emma Frost became very worried for Christian and asked their father to get him help. Winston claimed that he would help Christian but lied and instead sent him to a mental institution for ex-gay conversion treatments.

At some point Winston Frost apparently had Christian released from the institution in order to take over as the heir to his business empire. Christian then seemingly murdered his father after a lifetime of abuse. Emma discovered this after his release from the institution when she went to see him at her father's home. Winston met her at the door and forced her to retreat using never-before-demonstrated psionic powers. Emma then recruited Iceman to help her rescue her brother.

Astral Energy Manipulation: It was recently revealed that Christian does have mutant abilities. Although when they first manifested is unrevealed, it was clearly not during his youth. The extent of them is unknown but they appear to revolve around psychokinetic force manipulation. It is unclear as to what extent his sisters' mental powers would have any effect on him, as each of the other siblings' powers were incapable of affecting one another. However, at least while externalizing his powers as a psionic construct of his father he was able to directly attack his sister Emma with them. Emma was not able to access his mind directly, but could establish a mental link between him and Iceman. She can also speak telepathically with him.