Dothraki chief Khal Drogo is easily one of Game of Thrones’ most iconic and remarkable characters albeit having lasted for only one season. Despite the short ride, Khal Drogo was one of the show’s key players. With Game of Thrones Season 6 nearly upon us, viewers will get to see more of the Dothraki tribe that has been sorely missed.

In the upcoming season, Daenarys will reunite with his husband’s people and will form an alliance with another chiseled warrior.

“There’s another Khal up in here,” Emilia Clarke told The Hollywood Reporter. She’s referring to Khal Moro, played by New Zealand actor Joseph Naufahu.

“He’s Dothraki, so he’s a bit of a brute. But he’s also quite loyal. He follows traditions very strictly. He’s loyal to the living, and he’s loyal to the dead as well. He’s not as much of a chauvinist as some of the other Dothraki,” Clarke added.

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Naufahu himself is not a stranger to warfare. The former athlete appeared in Spartacus: War of the Damned. Fans may also recognize him in the upcoming film Ghost in the Shell, which stars Scarlet Johansson.

Clearly, he’s the perfect fit to play the mighty Dothraki fighter, who also happens to be the fiercest of them all.

“My hair was down to my butt, and that’s because [Moro] has never been beat. That’s the thing about the Dothraki: They all want to give it a go against each other.”

But playing a Dothraki is easier said than done. Although he was physically ready for the part, Naufahu admitted that the toughest part was learning the Dothraki tongue. Even the Khaleesi of the Great Grass Sea had to relearn the language.

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Joseph Naufahu’s Khal Moro is not the sole Dothraki to raise the temperature in Game of Thrones Season 6. According to Vanity Fair there are plenty of others and some of them might be familiar to fans such as Staz Nair who competed on X-Factor in 2012. Chuku Modu, who appears as Dothraki Ahko, will also be in Me Before You with Emilia Clarke.

Game of Thrones Season 6 premieres on HBO on April 24.