A former boxer who loses his robot Ambush to Ricky and absconds. He reclaims custody of his son Max, buys the obsolete robot Atom, and trains him using his boxing experience and Atom's shadow function. They win against Twin Cities and challenge Zeus. After initially giving up on fatherhood, he reconciles with Max and fights Zeus alongside Atom.
Biological father and son separated by years of neglect, now navigating temporary custody.
Bailey provides the training facility and strategic support for Charlie's comeback.
Ruthless promoter who exploits Charlie's debt and later robs him, driving the protagonist to despair.
Longtime friend who operates the underground arena and supports their early bouts.
Creator of the champion robot Zeus, whose team faces humiliation after the final match.
Charlie trains and operates the obsolete sparring robot, combining his skills with its programming.
Initially adversarial over custody, later cooperates to allow Max's championship opportunity.
Brother-in-law who formalizes the temporary custody arrangement.
National champion robot defeated by Atom's tactical exploitation.
Explore the full interactive character relationship map of Real Steel