>>556, >>557, >>558 I don't have an IMDB Pro account either, so no luck there. But as of this January, he was still with his U.S. agency (WME) according to the announcement about their partnership with UNICEF: http://www.hollywoodreporter.com/news/wme-img-launches-philanthropic-partnership-unicef-963446 . I checked WME's site and if you dig down, he's still listed in their database of voiceover talent.

They are a major, major agency, so it's hard to think that he and they would part ways. (Here's an article from when he signed with them in 2011: http://deadline.com/2011/10/wme-signs-british-actor-tom-hiddleston-186249/ -- he left another big US agency to sign with them). If he was unhappy with them, I suspect they would change him to another agent with the firm.

I couldn't find any names for any US publicists for him, though.