Game of Thrones Season 5: Characters we hope to meet

The supposed casting call leak for Game of Thrones Season 5 was missing some pretty big names from the A Song of Ice and Fire books, but we're guessing at least some of them will show up.
Assuming that Season 5 follows the stories of the concurrently occurring fourth and fifth books in the series, A Feast for Crows and A Dance with Dragons, respectively, here are the characters we can’t wait to meet.

Arianne Martell. Princess of Dorne and eldest child of Lord of Sunspear Doran Martell, Arianne is ambitious and beautiful, and uses her seductiveness to get what she wants. Think of her as a more hands-on Dornish Margaery.

Victarion Greyjoy. Theon’s uncle, Victarion is a great warrior and reaver. No one exemplifies the Iron Born lifestyle better than Victarion, and we can’t wait to see him cracking skulls with his axe.

Wyman Manderly. Lord Manderly of White Harbor is a big, fat, Stark loyalist... and we love him for it. If this guy makes it onto the show, we’ll all be rooting for him hard. Also, he makes a mean meat pie.

Aegon Targaryen. In a major reveal, we learn that Elia Martell and Rhaegar Targaryen’s youngest son, Aegon, was swapped out with a peasant baby before the Lannisters sacked King’s Landing and the Mountain killed the family. Tyrion comes across young Aegon in his travels, and Aegon doesn’t take as long as his aunt Dany to storm the Seven Kingdoms.
Euron Greyjoy. Another one of Theon’s uncles, Euron succeeds Balon Greyjoy as leader of the Iron Islands. If Victarion is the viking of the family, Euron is the pirate, complete with an eyepatch, exotic crew of cutthroats, and artifacts from far-flung lands — like a horn that controls dragons.

The Sand Snakes. The aforementioned report lists three of the eight Sand Snakes, Oberyn Martell’s bastard daughters, appearing next season. Obara, the eldest and greatest warrior; Nymeria, beautiful but no less deadly than her older sister; and Tyene, a septa who shares her father’s knowledge of poison. Missing from the casting call were the four young children of Ellaria Sand, as well as Sallera, the most mysterious Sand Snake, who is studying at the Citadel in Old Town, most likely disguised as a man name Alleras the Sphinx.

Randyll Tarly. Sam’s uncool dad whom we’ve heard about on occasion. A great battle commander, he may run into Brienne next season.

The High Septon. The new High Septon is a religious zealot who butts heads with Cersei and makes the Faith of the Seven more prominent than ever in King’s Landing.

Lady Stoneheart. While we’re still holding out hope that she’ll make an appearance in Season 4, undead Cat Stark will no doubt be one of the best parts of Season 5!