Harley Keener (portrayed by Ty Simpkins) is a child from Tennessee who, in 2012, assists Tony Stark following the destruction of his mansion and the ongoing attacks by the "Mandarin". In 2023, Keener appears as a young man at Stark's funeral. As of 2021, the character has appeared in two films: Iron Man 3 and Avengers: Endgame (cameo).