Jonos Bracken

Jonos Bracken is a minor character in Game of Thrones. He is played by guest star Gerry O'Brien and only appears in the final episode of the first season. He is the Lord of Stone Hedge and head of House Bracken. He is fighting for his liege lord Hoster Tully and King Robb Stark in the War of the Four Kings.

Background
Jonos Bracken is the Lord of Stone Hedge and head of House Bracken, a vassal family of House Tully of Riverrun. He is considered a loyal bannerman to Lord Hoster Tully.

Season 1
One of Lord Bracken's men (Kurleket) is among the knights Catelyn Stark summons to help her apprehend Tyrion Lannister at the Crossroads Inn.

Lord Jonos Bracken, having presumably joined Robb Stark's army after the victory at the Battle of the Whispering Wood, advocates joining forces with Renly Baratheon. Robb points out that Renly is the late King Robert's youngest brother and he cannot become king before Stannis. Bracken asks if Robb means to join Stannis instead. Greatjon Umber then suggests they become independent altogether, and declares Robb as the King in the North. Bracken and the other lords present, even the river lords who have never been ruled from Winterfell, draw their swords and swear fealty to Robb as the King in the North.

In the books
In the Song of Ice and Fire novels, Jonos Bracken is the ruling lord of House Bracken and its castle, Stone Hedge. He is a loyal bannerman to Lord Hoster. However, he has an enmity towards House Blackwood, part of an old feud going back a thousand years and which continues to cause unrest in the Riverlands.