Birthday: October 25
Height: 186 cm
Weight: 65 kg
Blood type: A
Favourite food: Beef fillet, Filet Mignon with Foie Gras sauce
Least favourite food: Oden

Seto Kaiba is the majority shareholder and President of his own multi-national company, KaibaCorp, who aims to become the world's greatest player of the Duel Monsters card game. To accomplish this goal, he must defeat his arch-rival, Yugi Muto. He is largely considered an anti-hero, as his motives are usually ego-centric, but in several cases towards a good cause.

Kaiba was first introduced as a prodigious, cold-hearted gamer who stopped at nothing to achieve his goals, even resorting to seemingly killing his opponents. He lived a bad childhood because of his good for nothing stepfather. When Kaiba learned that Yugi's grandfather possesses a "Blue-Eyes White Dragon" card, he ends up dueling Yami Yugi and lost while ending up in a coma after Yami used his power to momentarily shatter Kaiba's heart to purge it of his evil. Though reformed, later learning his rival's identity to be Atem, Kaiba retains his arrogance and rivalry with Yugi. While Kaiba leaves the story following the Battle City arc, he appears in the anime adaption as a major character and has been mentioned in sequel Yu-Gi-Oh! GX series as the founder of Duel Academy. Among one of the recurring plots in Yu-Gi-Oh! Duel Monsters is Seto Kaiba being forced to deal with either people adversely affected by Gozaburo Kaiba's actions wanting to take their revenge on Seto Kaiba, or people from within KaibaCorp attempting to take over the corporation.

He can be condescending, selfish, no-nonsense, and narcissistic, but, as Yami Yugi has said he can be oblivious at times. However, it is stated by Mokuba ever since being adopted by Gozaburo, Kaiba became much colder than he used to be. Despite this, Kaiba still has strong brotherly instincts for Mokuba and will put his life in danger in a heart beat to safeguard Mokuba's life. Apart from Mokuba, Kaiba has compassion for children—especially orphans (as he himself was one and knew what it felt like). Kaiba also threw himself between Zorc and two Egyptian children, thus enabling them to make a getaway. At various points during the series, he opens up momentarily, performing kind acts, though always covering them up with sarcasm, and denying them if asked. These occurrences increase in frequency towards the later series. Aside from that, Kaiba maintains a conservative, stiff, and uptight exterior. Like the Pharaoh, pride is Kaiba's strength and weakness; he never backs down from a fight and gives everything he can in a Duel. This results in his sense of superiority and sense of arrogance, making it extremely difficult to earn his respect, and causes him to look down on and treat others as inferior until they do so. This gives him difficulty when forced to rely on others and work as a team. His pride in himself and his accomplishments is a prominent part of his character throughout the series, and he reacts harshly to those who threaten or infringe on it (although it is toned down slightly towards the end).

(Source: Wikipedia, Yugipedia)