Tony Stark, brilliant inventor and founding Avenger. Goatee, often disheveled hair. Wears high-tech suits of armor with repulsors and flight capability. Genius-level intellect, especially in engineering. Charismatic and witty, with underlying insecurities. Struggles with PTSD and guilt over weapons manufacturing past. Mentor to Peter Parker. Romantic relationship with Pepper Potts. Represents technological innovation and the journey from self-interest to self-sacrifice.