Iwan has been busy working on his first album and he's been instagramming pics of the experience. Here's some and you can view more, plus his random images of scenery at his instagram.
Iwan also did a radio play based on and featuring music from the classic Pink Floyd album The Dark Side of the Moon with Amaka Okafor, Rufus Sewell and Bill Nighy. You can listen to a clip of it here.
And finally, Iwan posed with a teddy bear for a website that gets celebrities to pose with the bear, as well as just did a play reading with Russell Tovey and Rebecca Ryan. Sibel Kekilli (Shae on Game of Thrones also posted an oldie pic of the cast from last year on her facebook page.
(I think she messed with several of their eyes)
1, 2, 3, 4, 5, 6
I'm sure he filmed Game of Thrones sometime in between there.