Cressen

Cressen is a character in Game of Thrones. He will be played by Oliver Ford Davies and will debut in the second season.

Cressen is a maester of the Citadel, a man of learning assigned to a castle to advise its inhabitants in matters of history and science. Cressen currently serves Lord Stannis Baratheon at Dragonstone.

In the books
In the Song of Ice and Fire novels, Cressen is a long-standing servant of House Baratheon. He was maester at Storm's End for many years, and advised Stannis during the year-long siege of the castle by the armies of House Tyrell during Robert's Rebellion. After the death of Lord Steffon Baratheon in a shipwreck, Cressen adopted a fatherly attitude to the three Baratheon boys. After Stannis was made Lord of Dragonstone, Cressen followed him to his new home and has continued to advise him there ever since. Approaching eighty years of age, Cressen has started to slow down, so the Citadel have sent him an assistant, Pylos, who will take up his burdens and eventually replace him, a prospect Cressen is not happy about.