Qotho

Qotho is a character in Game of Thrones. He is played by Dar Salim and debuts in the first season.

Qotho is a Dothraki bloodrider in the service of Khal Drogo. He is one of Drogo's closest allies and a stalwart warrior.

In the books
In the Song of Ice and Fire novels Qotho is a skilled warrior, but he is also considered to be cruel and malicious, the least-likable of Drogo's bloodriders.