Rodrik Cassel

Ser Rodrik Cassel is a character in Game of Thrones. He is played by Ron Donachie and appears in the first episode.

Rodrik Cassel is Master-of-Arms at Winterfell and has trained many of its soldiers in the art of combat, as well as Robb Stark, Theon Greyjoy and Jon Snow. Rodrik is a knight, which is somewhat unusual in the North where most of the population holds to the Old Gods of the Forest.

Winter is Coming
Ser Rodrik informs Lord Eddard Stark that a deserter has been taken in the hills. He accompanies Eddard to the execution of Will, a deserter from the Night's Watch. On the way back to Winterfell he witnesses the discovery of the six direwolf pups.

The Kingsroad
After the failed assassination attempt on Bran, Rodrik identifies the blade carried by the assassin as Valyrian steel. When Catelyn Stark decides to warn Eddard of this discovery personally, he offers to accompany her and she agrees.

Lord Snow
Ser Rodrik arrives in King's Landing alongside Catelyn and escorts her during her business there.

Cripples, Bastards and Broken Things
At the Crossroads Inn, Ser Rodrik attempts to discourage the unwanted attention of the singer Marillion, unsuccessfully. He helps Catelyn take Tyrion Lannister prisoner upon his arrival.

The Wolf and the Lion
Ser Rodrik helps fend off an attack by the hill tribes and receives a minor wound, but is able to complete the journey to the Eyrie.

In the books
In the Song of Ice and Fire novels, Ser Rodrik Cassel is an honourable knight and stalwart warrior, advancing in years but still hale. He is proud of his facial hair, which he cultivates as 'whiskers'. He is fiercely loyal to House Stark. His older brother Martyn died during Robert's Rebellion. Rodrik has married thrice but only has one surviving child, his daughter Beth, although he also has a nephew, Jory, who serves Lord Eddard Stark as captain of the guards at Winterfell.