Hand of the King-The Hand of the King is the chief advisor to the Lord of the Seven Kingdoms and is the executor of the king's command in the Seven Kingdoms.
Lord Commander - is the title held by the most senior sworn brother of the Kingsguard, Queensguard, and Rainbow Guard. The Lord Commander is appointed by the King of the Seven Kingdoms, generally from the existing pool of the Kingsguard. He is a member of the small council.
Master of coin- The master of coin is the chief financial adviser of the king and is a member of the small council in King's Landing.
Master of laws-The master of laws, later called the justiciar, is the king's advisor relating to the administration of justice and is a member of the small council in King's Landing. Duties of the master of laws include managing the dungeons at the Red Keep and supervising the chief gaoler, chief undergaoler, undergaolers, and the King's Justice. The City Watch of King's Landing presumably falls under the bailiwick of the master of laws.
Master of whisperers-The master of whisperers or mistress of whisperers is the king's spymaster and is a member of the small council in King's Landing. He or she is charged with gathering intelligence from the Red Keep, King's Landing, around the Seven Kingdoms, across the narrow sea, and other places.
Master of ships-The master of ships is the king on the Iron Throne's advisor charged with running the royal fleet and is a member of the small council in King's Landing. Duties of the master of ships include arranging for the building and maintenance of warships, obtaining crews for the warships and commanding naval operations.
The Grand Maester- is considered the senior member of the order and serves as its representative to the king. He can only be made or unmade by the Conclave. He sits on the small council and acts as the king's adviser. The Grand Maester wears many interwoven maester chains to indicate his high office, but these do not reflect his true studies. Gems are woven into the chains.
Small Council Status
Hand of the King:Open
Lord Commander :Open
Master of Coin:Open
Master of Laws:Open
Master of Whisperers:Open
Master of Ships:Open
The Grand Maester:Open