Thanos (Earth-6531)

"I know what it's like to loose, to feel so desperately that you're right. Dread it. Run from it. Destiny still arrives. Fun isn't something one considers when balancing the universe. But this... does put a smile on my face."

- - Darkseid

Thanos, referred to as Darkseid, is a interstellar warlord and the ruler of the distant world of Apokolips. The king of the New Gods, Darkseid's only desire is to acquire all the Infinity Stones to become the most powerful being in the galaxy, which led him to deal with individuals such as Loki and Ronan.

Biography
Uxas was born as the younger son of Yuga Kahn and Heggra, the rulers of the planet Apokolips. Since he was a child, Uxas desired the throne of the planet, which he successful acquired after his mother became too old, and his father had disappeared in the Source Wall. Heggra desired her son to become a ruthless conqueror, much like herself and her husband, as opposed to aim for pacifism with the rest of the Milky Way.

At some point in his life, Darkseid was to set be married with Tigra, an Apokoliptian noble, by his mother. He, however, refused her love, instead falling in love with the sorceress Suli, a citizen of Apokolips who believed in peace between the worlds, and who used her magic to help and heal others. He was enthralled by her character, and the couple soon married, having a child, Nebula.

However, Uxas' love for Suli had "tainted" the new emperor's heart, making him forget for his desires of conquering and dedicate his love for his family. Heggra then ordered her most trusted servant, Desaad, to get rid of Suli, and so he poisoned her during a royal banquet, killing the recent queen. He was heartbroken, but decided to move on for the good of his realm and family, and one year later, he married Tigra as originally planned. .

Birth of Darkseid
Uxas learned about his mother's plan, and also of Desaad's involvement. He then gave the treacherous advisor a choice; kill Heggra and serve him forever, or take the full blame for Suli's death; he choose the former. As per Uxas' orders, Desaad killed Heggra in her sleep by stabbing her in the heart, and became Uxas' new adviser, who then decided to call himself Darkseid. He became a tyrant, becoming known through the galaxy as the Mad Titan and the God of Evil.

Personality
"Fun really isn't something one considers when balancing the universe. But this... does put a smile on my face."

- - Darkseid