Third is the third in command of the Orche Ring. He appears in the anime Jyu-Oh-Sei.
Third goes by the name "Third" because he says he can't even remember his real name. He has the brawn, intelligence and leadership skills to be the Top but he prefers being third because there's less responsibility. When he first meets Thor he takes an immediate liking to him and helps him with his quest to get off the planet. He even helps Thor become Top of the Orche Ring.
Chen, the leader of the Sun Ring women, is in love with Third and once picked him for the "month of joining" (which is the only time people on the planet Chimera are allowed to mate) but he declined, claiming he was unable to have children and picking him would be pointless.
Third is a very mysterious character. Throughout most of the series his motives are unclear. He often forces Thor into doing things he didn't want to do. Third actually kills Karim while disguised as Zagi to get the two men who loved her, Thor and Zagi, to fight to the death. The winner of this battle would become the Beast King and be allowed to leave the planet. When Thor wins, Third accompanies him to the awaiting space station where it is revealed that Third was working for the Prime Minister the entire time. His mission was to help Thor survive and become the Beast King and return him safely. For completing his mission, Third (whose real name is revealed to be Sigurd Heather) is promoted 3 ranks and will be allowed to go on an expedition to the uninhabited Earth. Going to Earth has been the Third's life long dream since the first time he saw a hologram projection of it as a little kid. Later, Third finds out that Earth was obliterated many years ago. Though devastated, Third helps Thor save Chimera from being terraformed and killing all the people who live there.