Five Hargreeves

His brothers are: Luther Hargreeves (number one), Diego Hargreeves (number two), Allison Hargreeves (number three), Klaus Hargreeves (number four), Ben Hargreeves (number six), Vanya/Viktor (number seven)

More family: Reginald Hargreeves (father), Grace Hargreeves and Pogo

Name: Five Hargreeves (Number Five)
Eye color: Green
Nationality: American
Hair color and hair style: Dark brown, short, neatly combed prep-school haircut
Personality: Extremely intelligent, cynical, and ruthlessly pragmatic. Five possesses a razor-sharp, sarcastic wit and carries the weary burden of a 58-year-old man trapped in a teenager's body. He is stubborn, arrogant, and easily irritated by others' incompetence, yet his cold exterior hides a fierce, unwavering devotion to saving his family. He thrives under chaos, relies on logic over emotion, and runs almost entirely on black coffee, pure spite, and high-stakes strategy.
Height: 5'5" (1.65 m)
Background: Adopted by Sir Reginald Hargreeves as one of seven extraordinary children, Five possessed the ability to jump through space and time. After accidentally trapping himself in a post-apocalyptic future at a young age, he spent over 40 years surviving alone before being recruited as a lethal assassin for The Commission. Eventually finding a way back to his family in the present day—though reverting back to his teenage physique—he uses his decades of tactical experience and killer instincts to relentlessly avert the end of the world.