The British Academy of Film and Television Arts (BAFTA) award-winning star exchanged vows with his lawyer partner Renee O'Brien in 2012, according to the London Evening Standard newspaper, but kept news of the wedding private.
A source tells the publication, ""They have been married for just over a year now. Ross is a private man so hasn't been broadcasting the news, but it hasn't been a secret to those around him. The couple stay away from the spotlight.""
Kemp was previously married to beleaguered former newspaper editor Rebekah Brooks, who has been caught up in the phone-hacking scandal which led to the closure of Britain's News of the World newspaper in 2011. They divorced in 2009.