Invader Zim: Enter the Florpus

An ambitious Irken invader who seeks Phase Two to conquer Earth, relying on deception and a relentless mission. After a period of absence, he finds himself depressed and unable to recall Phase Two, complicating his plans. His arrogance persists even as Dib and humanity push back against his scheme.

A determined human boy who refuses to accept the invasion at face value and fights to expose Zim. He regains physical fitness with Gaz's help and uses the Membracelet in an effort to turn the tables on Zim. He remains stubborn, brave, and unafraid to challenge the extraordinary.

Dib's sister who supports his fight and helps him regain his fitness. She brings practical know-how and stubborn loyalty to the Membracelet plan. Her presence keeps the siblings united under pressure.

A brilliant scientist who develops the Membracelet to harness children's positive energy. He expresses disappointment in Dib's alien-fearing beliefs while remaining central to the plot's technological twist. His inventions drive much of the action and the plan's unfolding.

Zim's unreliable but loyal robot sidekick, prone to mischief and bursts of energy. He often complicates Zim's plans with chaotic behavior yet remains a crucial ally. His childlike curiosity drives unexpected actions that push the plot forward.

A stern Irken leader who oversees the Armada's invasion and enforces the empire's will. Their imperial arrogance shapes the stakes of Earth's encounter with the Irken threat. They react to events with cool detachment until direct action is required.

The other Tallest who shares ambition and impatience with Purple, often weighing in on strategic decisions. They mirror the Armadas's domineering approach and contribute to the sense of an unstoppable invasion.

A small, energy-catalyzing device used with the Membracelets to teleport Earth into the Irken Armada's path. Its role is pivotal to turning the Florpus crisis into a direct confrontation with the Armada.

The Membrane family's robotic father figure who adds comic relief while providing mechanical support in the fight against Zim.

The Membrane family's robotic mother figure who shows care and resilience as the world faces an alien threat.