Ganon is a villain of pure evil who is a cruel and ruthless warlord.

Ganon's only ambition in life is to obtain the Triforce and dominate the world using the abilities imbued by them. Despite his undeniable lust for power, Ganon is a mastermind; he is an adept tactician and a master of manipulation and deceit. Ganon usually presents himself with the facade of a cynical, yet calm and civil man, although he is known to very quickly become enraged.

Taken from:
https://zelda.fandom.com/wiki/Ganon
https://vgcdatabase.fandom.com/wiki/Ganondorf_(Ganon).

Introduced in The Legend of Zelda simply as a monstrous Prince of Darkness, Ganon's character has seen much development throughout the series, from being a simple monster to a powerful warlock with deeper motives for his actions. As the manifestation of the Demon King Demise's hatred for the Goddess and her Chosen Hero, Ganon is destined to eternally reincarnate to pursue world domination. As such, through the series, he has seen several deaths and resurrections.

Ganon is the possessor of the Triforce of Power, imbued with the essence of the Goddess Din. This divine relic makes Ganon unimaginably strong and grants him boundless mystical power, making him a grave threat to the land of Hyrule and the world. As stated in the prophecy, the only one capable of defeating Ganon is the Hero who is chosen by the Goddesses.

Ganon is first given a back story in A Link to the Past. It was revealed that Ganon had not always been the boar-like demon introduced in The Legend of Zelda. He was revealed to once have been a human by the name of Ganondorf and the leader of a group of thieves. With the help of his followers, he became the first to enter the Sacred Realm in ages. He claimed the Triforce, turning the Sacred Realm into the Dark World and himself into a vastly powerful being. However, he was trapped within the Sacred Realm by the combined efforts of the Knights of Hyrule and the Sages.

In Ocarina of Time, it is explained that Ganondorf was born a Gerudo, one of the human races of the realm of Hyrule. The Gerudo are a race of mostly female warriors and thieves, to whom only one male is born every century. Because of this, the male is by birthright the King of the Gerudo.

Ganondorf uses his position, the trust of the King of Hyrule, as well as a great deal of cunning, manipulation, and mystical power, to gain entrance to the Sacred Realm, the abode of the Triforce. However, he does not obtain the full Triforce but is left with only the Triforce of Power, which he uses to great effect in his conquest of Hyrule.

In The Wind Waker, Ganondorf's character is given greater depth; a timeline was established, and Ganon is given a clearer background and motive for his villainy. It is made clear that his desire to conquer Hyrule stems from the arduous life he and his people are subjected to living in the harsh Gerudo Desert, a wasteland plagued by sandstorms and an unstable climate, which he compares to the verdant landscape of Hyrule Field, and the amenable life lived by the Hylians.
He is reborn in Four Swords Adventures, where although is still a Gerudo, he is not the king. He begins his transformation into the King of Darkness by violating the Gerudo taboo on the Pyramid and seeking out the Trident.

In Skyward Sword, Ganon is revealed to be a manifestation of Demise's hatred. Thus, he is destined to eternally reincarnate, becoming the source of various conflicts in the history of Hyrule, which involve those with the blood of the goddess and the spirit of the hero.

Even before gaining the Triforce of Power, Ganondorf was arguably one of the most powerful men in the entire land of Hyrule. He was an immensely powerful sorcerer with vast mystical resources, and as the King of the Gerudo, he also possessed political power.

Once Ganondorf gained the Triforce of Power, however, his abilities, both physical and mystical, were augmented to god-like proportions, his power unrivaled by any mortal. Ganondorf became utterly unstoppable, conquering Hyrule with ease. As seen in the events of Twilight Princess, the Triforce of Power also grants Ganondorf invulnerability. Using its power, he has endured mortal wounds (such as having his chest pierced by a sword), only to remain alive and unrelenting. In addition to his incredible strength, invulnerability, and magical abilities, Ganondorf has proven himself to be a very talented swordsman, as seen in the final battles between Ganondorf and Link in The Wind Waker and Twilight Princess. Ganondorf also has an unnaturally long lifespan, if not indefinite; he has lived through the ages of Hyrulean chronology.