Aggo is a Dothraki warrior sworn to Khaleesi Daenerys Targaryen. He is one of her bloodriders.
Aggo was a member of Khal Drogo's khalasar and a member of Daenerys' khas. When Drogo's khalasar fractures, he remains loyal to Daenerys. He pledges his fealty to her after the birth of the dragons. She names him as one of her bloodriders alongside Rakharo and Kovarro.
Daenerys leads what remains of her khalasar deep into the Red Waste. Facing starvation she sends Rakharo, Aggo, and Kovarro to scout in three different directions, using the last remaining horses. Aggo is sent southeast.
Aggo was a Dothraki warrior who escorted a captive Daenerys to Vaes Dothrak. Daario Naharis and Jorah Mormont killed him when they snuck into the city to rescue her.