Game of Thrones has come out with its first major casting announcement for Season 4.

Per Entertainment Weekly, Pedro Pascal - a Chilean actor who has appeared in The Good Wife and Graceland - will portray Prince Oberyn Martell next year on the HBO hit, a character known as The Red Viper who is the cunning prince of Dorne.

Look for the Viper to head to King's Landing on Season 4 for some good ol' fashioned revenge, considering his sister was among those killed by Gregor Clegane when Mad King Aerys was overthrown by Robert Baratheon and the Lannisters.

“This was a tough one,” say showrunners David Benioff and Dan Weiss said of the casting. “The Red Viper is sexy and charming, yet believably dangerous; intensely likable, yet driven by hate. The boys love him, the girls love him, and he loves them all back. Unless your last name is Lannister. We found a fellow who can handle the job description and make it seem effortless. He wasn’t easy to find and he won’t be easy to stop.”

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.