The "Game of Thrones" Comic-Con 2014 panel included a Season 5 cast announcement featuring many members of House Martell. With the new characters, there is still some speculation surrounding a few missing characters, including the Greyjoys and Arianne Martell.
Warning: Full "Game of Thrones" Season 5 spoilers and "A Song of Ice and Fire" discussion ahead.
As part of the "Game of Thrones" Season 5 cast announcement, Dorne will be heavily as Doran Martell, Trystane Martell, the Sand Snakes and Areo Hotah are among the new characters on the show. Prince Doran rules Dorne while Trystane is his son and heir to the throne. According to HBO's description for Trystane, Doran "betrothed him to Myrcella Baratheon as part of the alliance offered by Tywin Lannister, then Hand of the King."
The show is taking quite the departure from "A Song of Ice and Fire." In the novels, Trystane is Doran's youngest child and he has two other siblings, Arianne and Quentyn. Arianne is Doran's eldest child, and per Dornish customs, is the heir to the throne and has her own POV chapters in "A Feast for Crows." Based on the first casting announcement, it looks like the storylines for Arianne and Quentyn will be combined into Trystane for "Game of Thrones" Season 5.
In the novels, Arianne sets up a convoluted plan to name Myrcella Baratheon as Queen of the Seven Kingdoms. This involves plenty of scheming, unlikely allies and uncertainty that Arianne hopes will prevent her claim to throne from being challenged by her brother. The plot is foiled by Hotah and in the resulting fight, Myrcella is injured and loses an ear. It will be interesting to see how "Game of Thrones" series creators David Benioff and D.B. Weiss fold Arianne's storyline into Trystane. Arianne continues to have a prominent role in the novels and has a POV chapter in "The Winds of Winter."
Another interesting omission is the noticeable lack of Greyjoys. The "Game of Thrones" series has already played around with this storyline and it looks like the family will not make an appearance during Season 5. In "A Feast for Crows," Theon's uncles, Euron and Victarion are introduced as main characters with Asha, Yara in the "GoT" series, getting her own POV chapters.
Of course, this is early speculation and there could be more casting announcements in the future as "Game of Thrones" Season 5 continues to shoot on location in Croatia, Ireland and Spain. No premiere date has been announced but fans can spend their time speculating on Jon Snow's parents and awaiting news about "The Winds of Winter."