Aidyn James Ahn Amadeus / Iron Hulk (voice)
Hero Hunter Kid 1 (voice), Sam / Captain America (voice), Kid 2 (voice)
Kapri Ladd Riri / Ironheart (voice)
Lincoln Bonilla Tony / Iron Man (voice)
Mason Blomberg Tony / Iron Man (voice)
Mo Collins Bolts (voice)
Talon Warburton Absorbing Man (voice)
Vanessa Bayer Swarm (voice)
David Kaye Vision (voice)
Tony Hale Ultron (voice)
Trinity Jo-Li Bliss Museum Kid (voice), Girl (voice), Teen Girl / Little Girl (voice)
Fred Tatasciore Gamma / Iron Pup (voice)