Sage, born Tessa, was recruited by Charles Xavier at a young age after he discovered her extraordinary intellect and mental abilities. Rather than joining the X-Men openly, she became one of Xavier’s covert operatives, infiltrating the Hellfire Club under the alias “Tessa” to spy on Sebastian Shaw and feed intelligence back to the professor. For years, she lived a double life as Shaw’s cold, analytical aide, hiding her true allegiance while mastering deception and strategy. When her cover eventually ended, Sage rejoined the X-Men, serving as their living computer—an intelligence analyst, strategist, and genetic forensics expert whose power to process limitless data and “jumpstart” dormant mutant genes made her indispensable. Her life since has been one of discipline, secrecy, and self-control, defined by the moral weight of knowledge and the cost of always being the one who sees everything.

Age: 31 Years Old

Hair: Black

Eyes: Blue