Kristian Nairn, best known for playing Hodor in Game of Thrones, will publish his memoir this autumn.
Beyond The Throne: Epic Journeys, Enduring Friendships and Surprising Tales promises to shine a light on the person behind the character.
He will write about coming of age in Belfast and Lisburn, and as a gay man looking for a sense of a community.
The book will be published on 24th September.