'Game Of Thrones' On Memorial Day Weekend
Will a new episode of "Game of Thrones" Season 4 air on Memorial Day Weekend? HBO

New characters for the upcoming “Game of Thrones” Season 5 had already been revealed, while the fourth season is yet to air its final three episodes, according to winteriscoming.net.

HBO reportedly declined to comment on the list, which was posted on the website citing an unofficial source. The list revealed that viewers would get to see more members of the House Martell in the fifth season, which is an adaptation of George R.R. Martin’s “A Song of Ice and Fire.”

“Game of Thrones” Season 5 will reportedly feature Prince Oberyn's older brother, Prince Doran Martell, who is the Lord of Sunspear. Prince Doran's youngest son, Prince Trystane Martell, who happens to be Princess Myrcella Baratheon's fiancé, will also appear. Prince Trystane will be accompanied by his loyal bodyguard and the captain of Doran Martell's guards, Areo Hotah.

The new faces could include Prince Oberyn’s bastard daughters, known as the Sand Snakes. They include Obara Sand, who is the eldest, Nymeria Sand (also called Lady Nym), a strong girl of “mixed race,” and Tyene Sand, reportedly the youngest of the Sand Snakes.

The other new characters could reportedly include High Sparrow, current High Septon of the Faith of the Seven; Septa Unella, a septa of the Faith of the Seven in service at the Great Sept of Baelor in King's Landing; fortune teller Maggy the Frog, from Lannisport; Bronn's fiancé Lollys Stokeworth; Yezzan, a wealthy slave trader and one of the Wise Masters from Yunkai; and the Waif, a strange child that Arya encounters.

According to reports, HBO will film portions of Season 5 in Spain, but other details about the upcoming series are yet to be revealed.