Khotan

Khotan is Genji's and Shai's father, and the son of Gramma Genji and Grampa Pamir. It is unknown if he plays a part in the story in the beginning.

Early life
Khotan was born in the Hami tribe, a group of nomads who lived in the Si Wong desert and turned out to be a earthbender. At one point he fell in love with a woman named Zahra and in the spring of 192 the couple had a son, whom they named Genji after Khotan's mother. Genji also turned out to be a bender and therefore Khotan trained him. Seven years later, the couple had a daughter Shai.

In 204 AG all Sandbenders were driven out of the Si Wong desert and Khotan and his family were forced to start living in the city of Jinsha. A year later Khotan left his family to return to the desert.

Notes and Trivia

 * By training his son Khotan became the avatar's Earthbending teacher, although he didn't know it at the time.