ONA
Description
Ghetsis Harmonia Gropius serves as the primary antagonist in the later episodes of Pokémon Generations, specifically within the arc depicting the climatic events in the Unova region. He is the true leader of Team Plasma, an organization that publicly advocates for the liberation of Pokémon from Trainers but secretly operates under his dictatorial ambitions. Unlike the public-facing king, his foster son N, Ghetsis remains in the shadows, orchestrating the group's actions to achieve his own selfish goals.

In terms of personality, Ghetsis is portrayed as a chillingly manipulative and power-hungry individual. He is devoid of genuine moral compass and is driven by an insatiable lust for domination, aiming to be the sole ruler of Unova and the only person with the right to command Pokémon. His demeanor is one of cold, calculating malevolence. He presents a facade of a dignified leader but is revealed to be a madman willing to go to any extreme to secure his victory. This includes freezing an entire city and its civilian population solid without hesitation to achieve his objectives, showcasing a complete disregard for human life.

Ghetsis's motivations are rooted in pure egoism and a desire for total control. He has no interest in the ideals of Pokémon liberation that his organization preaches; this rhetoric is merely a tool to disarm the populace and leave him as the only authority with the power of Pokémon at his disposal. His primary goal is to conquer the Unova region and presumably the world, using the legendary Pokémon Kyurem as a weapon of mass destruction to freeze all opposition.

Within the story of Pokémon Generations, Ghetsis is the mastermind behind Team Plasma's aggressive takeover. He orchestrates a simultaneous attack on the Unova League and the freezing of Opelucid City to seize the DNA Splicers. His ultimate plan culminates in the episode The King Returns, where he commands Kyurem to freeze all of Unova. When his foster son N arrives with Reshiram to stop the destruction and free Kyurem from its suffering, Ghetsis shows his true, monstrous nature. He uses the DNA Splicers to forcibly fuse Reshiram with Kyurem, creating White Kyurem, and orders the fusion Pokémon to execute N with the move Ice Burn, revealing that he never cared for N and only ever saw him as a tool to be discarded when no longer useful.

A key relationship in this portrayal is his utterly cynical connection to N. Ghetsis raised N as his foster son, manipulating and emotionally abusing him to foster a hatred for Pokémon Trainers, all so N would be a suitable puppet king to control a legendary dragon. In Pokémon Generations, the full extent of this betrayal is laid bare when he attempts to murder N himself for refusing to be his pawn. Another significant relationship, though brief, is his confrontation with the protagonist Hilbert, who arrives on Zekrom to challenge Ghetsis and stop his reign of terror.

Notable abilities of Ghetsis in this series are not his own physical prowess but his strategic genius and his ruthless command of legendary Pokémon forces. He is shown successfully commanding and controlling Kyurem, the powerful boundary Pokémon, which he uses to generate a devastating freezing cannon. He is also the wielder of the DNA Splicers, a device capable of forcibly merging two separate legendary Pokémon—Kyurem and Reshiram—into an even more powerful fused form, demonstrating his willingness to violate the natural order for power.