In 2011, Glenister reunited with John Simm once more in the Sky TV mini-series "Mad Dogs" about a group of old friends whose holiday in Majorca takes an unexpected turn. After a successful reception, the cast returned for a second run of the series in 2012. The show ran for two more seasons after that in 2013. Those two seasons consisted of four and two episodes respectively. Glenister played Captain Smollett in Sky1's adaptation of "Treasure Island", broadcast at Christmas 2012. Glenister also appeared in the 2012 premiere of the play "This House".