And it's about bloody time! *slightly spoilery*

[the_willows]

According to this article, it has been confirmed that Arthur Darvill is to get a screen credit in the titles from the Christmas episode onwards as a fully fledged full-time companion for the Christmas Special and series 6! \o/

Read it here: Fuck Yes

I'm unfeasibly excited by this. <3

Edit: The tags aren't the spoiler, the spoileryness is something else in the article.