He was married to Lara Pulver (who has been in a few things, but the thing that stands out for me is Irene Adler in BBC’s Sherlock) They were divorced sometime recently – the pure love fairytale of Ginny & Josh isn’t quite as pure as Snow and Charming as it seems that from the timelines, they hooked up before his divorce – or before his divorce was public knowledge anyway (that doesn’t mean that the relationship wasn’t dead and buried before that)
He was Falstaff in Thor, but he has been replaced by another actor for Thor 2 because of his commitments to OUAT.
And that is the grand total of what I know about Josh Dallas.