First Mate

The first mate is a minor unnamed character who appears in the fourth season and is played by Rhodri Miles.

Background
He is one of the fifty best ironborn fighters and follows Yara Greyjoy after she chooses him to go with her to Dreadfort.

Biography
He enters Dreadfort under command of Yara Greyjoy as they try to take Theon Greyjoy back to the Iron Islands. They fight fiercely and kill many Bolton men, but when Ramsay Snow sets his hunting dogs free, they are forced to retreat to their boat.