Spotted: At the luxurious, five-star St David's Hotel and Spa in Cardiff Bay, at a glitzy party for his 37th birthday.

Is it Love? Fava is the second assistant director from the set of Doctor Who and is also the second girl from show who the actor has dated in the last six months. According to The Daily Mail the Time Lord has taken her out on a series of romantic dates in Wales. A source said: "They were certainly enjoying each other's company. You can tell they get on well."

Love rating: A sceptical 6/10. It has only been since October 2007 since Tennant parted ways with actress Sophia Myles following their two-year relationship.