Batman and Superman: Battle of the Super Sons

A teenage Kryptonian raised in Smallville who begins to manifest heat vision and deals with his father’s frequent absences. He seeks guidance from Batman and learns to trust Damian as they confront Starro’s invasion. His arc centers on finding his own identity as Superboy and proving he can stand with Earth's heroes.

Batman’s son, skilled and initially brusque, who clashes with Jon but grows into a loyal ally. He brings Bat-tech and strategic acumen to the mission, earning Jon’s respect through courage and sacrifice. The pair’s collaboration evolves from rivalry to mutual trust as they face Starro together.

The Kryptonian father who must balance his dual identity with family life. He reveals his true self to Jon and leads the charge to protect Earth as Starro’s threat escalates. His leadership anchors the film’s emotional core and demonstrates true heroism through responsibility.

A seasoned vigilante and mentor who grapples with losing contact to the Watchtower. He partners with Superman to investigate the Starro threat and safeguard Damian. His calculated planning contrasts with Superman’s more paternal approach, highlighting different approaches to leadership.

A tactician who investigates the Watchtower’s assault and confronts the alien threat alongside the other heroes. His presence emphasizes the broader superhero network forming a coordinated response. He helps drive the mission forward with precise action and teamwork.

Clark’s partner and a reporter who becomes entangled as Starro’s spores threaten control over Earth. She is freed from Starro’s influence, then stays connected to the strategic plan, emphasizing the human element in the crisis. Her resilience grounds the stakes in everyday courage.

A holographic consciousness guiding Jon and Damian, explaining Starro’s hive-mind and the Kryptonian tech essential for defeating the threat. He provides crucial context about Starro’s weakness and the path to victory. His guidance helps the heroes connect their powers to Kryptonian science.

An alien parasite with a hive mind that infects heroes across the Watchtower and beyond. Starro’s goal is to drain Earth’s life while controlling its champions. The spores’ vulnerability to heat and the Watchtower’s re-entry create the film’s climactic conflict.

A political power referenced as the source of authority in Lois’ communications, representing human stakes in the crisis. His presence adds a layer of political dimension to the intergalactic threat facing Earth.