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A collection of fictional characters appears inAmerican comic books published byMarvel Comics featuring the superheroIron Man as the main protagonist.

Since the introduction ofIron Man inTales of Suspense #39 (1963), Iron Man has accumulated a diverse range of supporting characters. They are friends, employees of Tony Stark, and other superheroes. This is a list of them:

• Gregory Stark – Tony Stark's older twin brother in Ultimate Marvel Universe. He's part of the Avengers Project led by Nick Fury.^[1]
• Morgan Stark – Morgan Stark is the daughter ofTony Stark andPepper Potts in theMarvel Cinematic Universe filmAvengers: Endgame (2019). Lexi Rabe portrayed Morgan Stark.
• Andros Stark – Andros Stark is the grandson of Tony Stark inIron Man: Armoured Adventures. He went back in time from the year 2099 to protect the future.

• Abraham "Abe" Zimmer – Abe Zimmer was a senior member ofStark Enterprises board of directors and trustee of Tony Stark's corporate assets.
• Andy Bhang – Former Chief Robotics of Stark Unlimited, currently the owner of Bang Robotics.^[2]
• Bambina Arbogast – Bambina Arbogast is the former executive assistant to Tony Stark at Stark International.
• Bethany Cabe – Bethany Cabe is Tony Stark's former girlfriend and Chief of Security at Stark Unlimited. She possess gymnastic abilities and was highly trained in hand-to-hand combat.^[3]
• Doctor Shapiro – Doctor Shapiro is a hyper-intelligent cat working for Stark Unlimited, as an expert in superhuman biology.^[4]
• Eddie March – Eddie March is a boxer and friend to Tony Stark.^[5]
• F.R.I.D.A.Y. – An artificial intelligence that would appear as a hologram and act as Tony Stark's secretary.^[6]
• Guardsman – Kevin O'Brien was head of the research department at Stark Industries and a close friend of Tony Stark. However, after building the Guardsman armor, Kevin O'Brien became an adversary toIron Man.
• Halcyon – A deaf mutant street racer and engineer with the power to control his heartbeat.^[7]
• Happy Hogan – Hired by Tony Stark as his chauffeur and personal assistant after Happy saves Tony's life.^[8]
• H.O.M.E.R. – Heuristically Operative Matrix Emulation Rostrum. An artificial intelligence in charge of all of Tony Stark's secret manufacturing projects.^[9]
• Ho Yinsen – A medical genius and pacifist. Plays a key role in Iron Man's origin story as a mentor and co-builder of his first armor.^[10]
• J.A.R.V.I.S. – The program that helps operatePepper Potts's Rescue suit.
• Jocasta – Built by the robotUltron, she aided theAvengers. Jocasta later became the Chief Robotics Ethicist at Stark Unlimited.^[11]
• Maria Hill – Becomes a core member of Stark'sS.H.I.E.L.D. cabinet and assists Stark in dealing with a sudden rise in various terrorist groups.^[12]
• Michael O'Brien – Michael O'Brien was a police sergeant who believed Iron Man was responsible for his brother's death. After fighting Iron Man as theGuardsman, he discovered his mistake and eventually became an ally to Iron Man.^[13]
• Maya Hansen – A scientist who developed theExtremis virus along withAldrich Killian. She is an old friend of Stark.
• Pepper Potts – Originally a member of Tony Stark's secretarial pool. She later becomes part of a love triangle with Tony Stark andHappy Hogan.^[14]
• Sal Kennedy – Sal Kennedy is a friend and mentor for Tony Stark and Maya Hansen.^[15]
• Toni Ho – Dr. Toni Ho is an engineer and daughter of Ho Yinsen who wore the Iron Patriot armor as a member of theU.S.Avengers.^[16]
• Riri Williams – Riri is a young girl who created her own version of the Iron Man Armour suit and is mentored by Tony Stark.^[17]
• War Machine – James Rhodes is a pilot who helped Iron Man flee from the Viet Cong soldiers after his escape fromWong-Chu's prison camp. He would later become Tony Stark's best friend and wear his own power armor.^[18]

• Amara Perera – Dr. Amara Perera is a brilliant biophysicist who developed a cure for the mutant gene that theoretically prevented Mutants from receiving their abilities. Amara was the girlfriend of Tony Stark, who would later leave him forVictor Von Doom.
• Black Widow - First introduced as a Russian spy and as a villain of Stark himself. She would later redeem herself joining theS.H.I.E.L.D. and later becoming a member of theAvengers.^[19]
• Cassandra Gillispie – Cassandra Gillespie was the daughter of a weapons manufacturer rival of Howard Stark. Cassandra and Tony Stark were seeing each other when he was studying at University of Cambridge. Years later, Tony Stark crossed paths with Cassandra when he was trying to find out about his true parentage.
• Madame Masque – Whitney Frost is an occasional love interest, enemy of Iron Man and the daughter of Count Nefaria. Her birth name is Giuletta Nefaria. Raised as a wealthy socialite, Whitney Frost wore a golden mask to cover up her disfigured face and continues to do so after her face was healed due to paranoia.^[20]
• Indries Moomji – Indries Moomji was the girlfriend of Tony Stark who was recruited by Obadiah Stane as the Queen in his group the Chessmen. She seduced Tony Stark and played a role leading to his downfall.
• Rumiko Fujikawa – Girlfriend of Tony Stark and daughter of Kenjiro Fujikawa, the man who had taken over Stark's company during his stay in theHeroes Reborn universe.^[21]
• Sunset Bain – Sunset Bain met Tony Stark when they were MIT undergraduate. She seduced him into revealing the security codes for Stark Industries and stole several prototypes. Shortly thereafter, Sunset founded Baintronics and broke it off with Tony Stark. She assumed the Madame Menace persona to make underground arms deals while Baintronics minted a spotless reputation.
• Wasp – Wasp (Janet Van Dyne) founded the Avengers with Iron Man and had a significant relationship with him twice.^[22]
• Patsy Walker/Hellcat - In Christopher Cantwell's run ofIron Man, Patsy serves as Tony's love interest. Tony even proposes to her, though she turns him down.^[23]
• Emma Frost - During theFall of X storyline, Stark was called over by Emma Frost to put a stop toSebastian Shaw's plans. However, in the middle of their business partnership, Stark and Frost fell in love and got married.

• List of Iron Man enemies
• List of Captain America enemies

• Iron Man characters
• Lists of Marvel Comics characters
• Lists of supporting characters in comics

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