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Speaking at today's Women in Film and Television Awards, the Ashes to Ashes actor revealed that the cast begin shooting another batch of episodes in January.
"It's a bit of a rollercoaster really," he divulged. "We finished the second series in August, and then Sky commissioned a third. So we're going to start shooting that at the end of January for a few months."
Glenister also revealed that horror movie star David Warner has joined the second series of Mad Dogs, which airs next year.
The 48-year-old added: "It sort of becomes a bit of a road movie. There's some new interesting characters... we've got David Warner who's coming in to play a rather sinister chap."
The Sky1 drama, which also stars Glenister's Life on Mars colleague John Simm, as well as Max Beesley and Marc Warren, was a ratings hit earlier this year.
Watch Digital Spy's interview with Max Beesley on the first series of Mad Dogs below:
