Jack

Jack, also known as Subject Zero, is a powerful biotic with a troubled past marked by cruel experiments conducted by Cerberus, which honed her biotic abilities but left her emotionally scarred and violent. In Mass Effect 2, she joins Commander Shepard's team, seeking redemption and revenge, despite her rough exterior, she has a complex personality and a deep capacity for loyalty to those who earn her trust. She grew up in the rough neighborhoods of Boston, where she developed a tough demeanor and a love for street racing. A staunch introvert, she finds solace in solitude and tends to avoid large social gatherings. Her past experiences have made her deeply wary of authority figures, whom she believes cannot be trusted. Edgy, stubborn, and caring.