‘Sherlock’ Star Rupert Graves Joins Cast of ‘Last Tango in Halifax’ Series 3 7/6/2014 Comments in Drama by Lacy Baugher Popular romantic family drama Last Tango in Halifax was renewed for a third season earlier this year (the show’s second run is currently airing in America as we type speak) and production is slated to begin in July. This is all in and of itself very good news for those that love the show, but there’s even more good news to be had. Sherlock’s Rupert Graves has officially announced that he’ll be part of the cast in Series 3! The actor is best known for his role as the put-upon Detective Inspector Lestrade in the hit consulting detective series, but has also had featured roles in such series as The White Queen, Scott and Bailey and Doctor Who, among many others. Graves will play a man named Gary Jackson in Halifax, but other than his name, we know literally nothing about who this character will turn out to be or who he will interact with on the show. So, start speculating, I guess?