What You Need To Know About The 'Game Of Thrones' Sand Snakes

A handful of new characters will arrive on "Game of Thrones " next season and three of them are about to become your favorite people in Westeros.

Meet the Sand Snakes : the daughters of Oberyn Martell who will make it their mission to avenge their father's brutal death . Season 5 of "GoT" will finally travel to the region of Dorne, where free love, independence and bastardy are much more celebrated, unlike the rest of the Seven Kingdoms.

In a new video from HBO, we're introduced to Oberyn's three eldest daughters, Obara Sand (Keisha Castle-Hughes), Nymeria Nym Sand (Jessica Henwick) and Tyene Sand (Rosabell Laurenti Sellers). Check out the video above to see each of them fighting with their signature weapons.

In two other behind-the-scenes videos for Season 5, we get a look at the upcoming fight scene in Daznak's Pit , Sansa 's darker new look and the construction of new sets. Watch them both below.

"Game of Thrones" Season 5 premieres April 12 on HBO.