First, Game of Thrones cast its Red Viper; now, it’s introducing us to the mother of some Sand Snakes.

Rome alum Indira Varma will play Ellaria Sand in the HBO drama’s upcoming fourth season, EW.com reports.

RELATED | Game of Thrones‘ Nikolaj Coster-Waldau Dishes Behind-the-Scenes Scoop on Jaime and Brienne’s Bath Scene

The character is the sexually frisky lady friend of Oberyn Martell (aka the Red Viper), a part the show recently filled with Graceland‘s Pedro Pascal. The pair have four daughters together who — along with some of Martell’s other illegitimate offspring — are collectively known as the Sand Snakes.

Varma played Lucius’ wife Niobe on HBO’s Rome. Her other credits include Hunted, Human Target, Bones and Luther.

Game of Thrones started production on Season 4 this month; the fantasy series will return in 2014.