Bharbo

Bharbo was a Dothraki and the father of Khal Drogo.

He is mentioned by his son when the latter vows to cross the Narrow Sea and conquer the Seven Kingdoms in response to the attempted assassination of his pregnant wife, Daenerys Targaryen.

In the books
In the Song of Ice and Fire novels, Bharbo is mentioned in the same way as in the TV series; Drogo refers to him when swearing to retake his wife's father's throne.