Hyui of the Wind is the leader of the Goshasei's Wind Army and uses a style which allows him to slice using manipulate wind pressure. In the manga, Hyui faces Raoh immediately after his first appearance and is quickly defeated. Before dying, he tells Raoh that the rest of the Goshasei will come looking for him and Ken. In the TV series, Hyui encounters Kenshiro as well prior to fighting Raoh. He also has a younger brother in the TV series named Shion.  

(Source: Wikipedia)

Nuclear war has devastated the planet, turning one fertile ground into a barren, inhospitable landscape on which mankind struggles desperately to stay alive. Society has collapsed and a fight for control wages between vicious dictators, super-powerful mutants, and biker gangs that terrorize the streets. 
 
In a world so cruel and bleak, only the chosen one can restore civilization to its former self. Kenshiro - master of the Hokuto Shinken fighting technique; a martial art so awesomely brutal that only a single being can be entrusted with its full power! 
 
(Source: Manga Entertainment)

He was a veteran seiyuu born in Chiba Prefecture.  He retired from voice acting on December 31st, 2000 when he felt a weakness in his own voice. Sogabe died on September 17th, 2006 at around 8 PM from esophageal cancer, with which he had been diagnosed two months before.

One day, a wanderer appears out of the wasteland to bring justice to the guilty and hope to the people—a warrior named Ken, a man who bears seven scars upon his chest and holds the secret of a mysterious martial art known as Hokuto Shinken, the Divine Fist of the North Star! 
 
(Source: Viz Media)

Juuza is a total rebel who obeys and bows to absolutely no one, and with his terrible self taught fighting style, he has absolutely no one to fear. 
Juuza once gave up on his true love since he realized blood relation made a relationship impossible... But now that she is dead, Juuza has a thing or two to say to the man who was unable to protect her.

The story is a spin-off prequel to the original Hokuto no Ken. It centers around Garuda who practices the Nanto Shinchou Ken style of martial arts. In the manga he will fight the five Nanto Goshasei members, impress Rihaku and provide a chance for Kenshirou and Yuria to unite.

Super-deformed version of Buronson, Hara Tetsuo's post-apocalyptic fighting manga. 
Note: The "DD" stands for "Design Deformation," since the characters are only "two-heads-tall."