Nairn confirms that his character, Hodor, will be absent for the fifth season of Game of Thrones. He says the character of Bran Stark, played by Isaac Hempstead-Wright, a son of the high-born Stark family who is crippled and is carried by Hodor, will also be absent:
We’re not actually in Season Five, by the way. We have a season off. We have a year’s hiatus … Solely because, I imagine, our storyline is up to the end of the books. … So I get a year off now to do Rave of Thrones and gallivant all over the world.
The absence is not confirmed with Hempstead-Wright.