Tony Stark's personality is a blend of brilliance, arrogance, and a hidden vulnerability that drives his arc from a self-absorbed playboy to a self-sacrificing hero. Key traits include his genius, charm, and cockiness, but these are often a mask for deep-seated guilt and fear stemming from his past and his company's actions. He is witty and charismatic but also deeply flawed, and his journey is defined by his learning to take responsibility, forming meaningful connections, and ultimately making 