Jollen Frey is a minor character in the fourth and fifth seasons. He is a member of House Frey and a member of the Night's Watch.
Jollen Frey was a distant relation of Walder and his family at the Crossing. He decided to join the Night's Watch to seek out some glory.
Jollen is quickly taken out of the fight against the Wildlings.
Jollen Frey is one of the Night's Watchmen who vote for Jon Snow as the new lord commander.